modiloader | 1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 19:19

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General

Target

1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
Size

90KB
MD5

c2d924c0886b51c568b8ef5f71362fcc
SHA1

ab497b6d53df329319b3518452de8739caa3f151
SHA256

1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075
SHA512

b823a84501df65837a81493914c6e82b569e735c04d2a6c42602841d487c58464b0a796717e8c33019936ea3a72d78393df2a9b7ddd8fcbc4323c34565f5d042
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral1/memory/1792-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1792-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1784	csrsll.exe
1244	csrsll.exe
1792	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2148 set thread context of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 1784 set thread context of 1244	1784	csrsll.exe	36
PID 1784 set thread context of 1792	1784	csrsll.exe	37

UPX packed file 21 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2148-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2148-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2148-95-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2808-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2808-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2808-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2808-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2808-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2148-100-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2808-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000015fa6-131.dat	upx
behavioral1/memory/2808-145-0x0000000003240000-0x0000000003293000-memory.dmp	upx
behavioral1/memory/1784-151-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2808-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1784-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2808-212-0x0000000003240000-0x0000000003293000-memory.dmp	upx
behavioral1/memory/2808-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1784-257-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1244-262-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1792-263-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe
Token: SeDebugPrivilege	1244	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
1784	csrsll.exe
1244	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2148 wrote to memory of 2808	2148	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	30
PID 2808 wrote to memory of 2584	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	32
PID 2808 wrote to memory of 2584	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	32
PID 2808 wrote to memory of 2584	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	32
PID 2808 wrote to memory of 2584	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	32
PID 2584 wrote to memory of 1316	2584	cmd.exe	34
PID 2584 wrote to memory of 1316	2584	cmd.exe	34
PID 2584 wrote to memory of 1316	2584	cmd.exe	34
PID 2584 wrote to memory of 1316	2584	cmd.exe	34
PID 2808 wrote to memory of 1784	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	35
PID 2808 wrote to memory of 1784	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	35
PID 2808 wrote to memory of 1784	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	35
PID 2808 wrote to memory of 1784	2808	1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe	35
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1244	1784	csrsll.exe	36
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37
PID 1784 wrote to memory of 1792	1784	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
"C:\Users\Admin\AppData\Local\Temp\1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe
  "C:\Users\Admin\AppData\Local\Temp\1b8d8f0a9bc65275035b72043700440e7100eaa0581f952a4d3db5172db11075.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FTSEM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2584
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1316
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1784
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1244
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\FTSEM.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
cc82ca52869287233cc58d22668a418e

SHA1
a8c3a948a626b8084c99bb78ec860c93251625a6

SHA256
6900623ebbb12ee3ae55c232304404cb497917a4ef7e28a3ea869bcf9a2fdaff

SHA512
c4b476b0285f66f76b1a5efbae019bd592ffc6d013167d104e67acb4eb3d7660c958ccc1060de20938532755cc3c4c292a1b1804e09f41baabe29d79b35f3cf4

Download Submit
memory/1244-262-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1784-178-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1784-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1784-257-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1784-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1784-167-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1784-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1792-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2148-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-71-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/2148-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2148-61-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/2148-15-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2148-41-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/2148-104-0x00000000007D0000-0x0000000000823000-memory.dmp

Filesize
332KB

Download
memory/2148-29-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2148-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2148-100-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2148-95-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-79-0x0000000000720000-0x0000000000722000-memory.dmp

Filesize
8KB

Download
memory/2808-145-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-146-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-149-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-212-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-147-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-253-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-251-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-249-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-247-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2808-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-148-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads