modiloader | 65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 12:09

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General

Target

65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
Size

90KB
MD5

0e3372e4f17003e054054d6e7d120259
SHA1

81d7f0beffd488a4cad34ef75ac62f916d0bdeeb
SHA256

65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa
SHA512

28795e0ed326e05768ea362ffd316a847d53a5523337074b4c8c9c5f3de9e3f44ebb40fbc72e5f53c226e0e280b4b868b9cb6fe3041d2b21eeb5941045cb9036
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD0:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3i

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 family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/1300-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1612	csrsll.exe
1636	csrsll.exe
1300	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.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-1-5-21-1488793075-819845221-1497111674-1000\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 2488 set thread context of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 1612 set thread context of 1636	1612	csrsll.exe	36
PID 1612 set thread context of 1300	1612	csrsll.exe	37

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2488-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2608-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2608-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2608-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2608-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2608-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2608-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2608-110-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-133.dat	upx
behavioral1/memory/2608-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1612-214-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1612-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2608-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1300-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1612-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1300-262-0x0000000000400000-0x0000000000414000-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	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe
Token: SeDebugPrivilege	1636	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
1612	csrsll.exe
1636	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2488 wrote to memory of 2608	2488	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	31
PID 2608 wrote to memory of 2604	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	32
PID 2608 wrote to memory of 2604	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	32
PID 2608 wrote to memory of 2604	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	32
PID 2608 wrote to memory of 2604	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	32
PID 2604 wrote to memory of 1712	2604	cmd.exe	34
PID 2604 wrote to memory of 1712	2604	cmd.exe	34
PID 2604 wrote to memory of 1712	2604	cmd.exe	34
PID 2604 wrote to memory of 1712	2604	cmd.exe	34
PID 2608 wrote to memory of 1612	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	35
PID 2608 wrote to memory of 1612	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	35
PID 2608 wrote to memory of 1612	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	35
PID 2608 wrote to memory of 1612	2608	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	35
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1636	1612	csrsll.exe	36
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37
PID 1612 wrote to memory of 1300	1612	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
"C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
  "C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BMSXJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - 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:1712
- - 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:1612
  - - 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:1636
  - - 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:1300

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a0a6fd24266fe321f734e241f4f8395c

SHA1
d560495da62e0af4b883d2a5b76ad375e4ade4b8

SHA256
a1db7954f7cc7693e12f1eed23b38a2e005d82df9af46bb6cd14beb1bb29603b

SHA512
e4c31dd47295182746aaccd40b153c27c0495a77f472e2aefac3482867c5ffd765d2a9163b7961e220d168e90cc0c977ef9b2d763effea0b9cab887d8ee85c79

Download Submit
memory/1300-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1300-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1612-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1612-178-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1612-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-214-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-167-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1636-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2488-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-80-0x0000000001E50000-0x0000000001E52000-memory.dmp

Filesize
8KB

Download
memory/2488-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-71-0x0000000001E20000-0x0000000001E21000-memory.dmp

Filesize
4KB

Download
memory/2488-61-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2488-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-29-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2488-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2488-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2488-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2488-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2608-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-154-0x00000000033A0000-0x00000000033F3000-memory.dmp

Filesize
332KB

Download
memory/2608-153-0x00000000033A0000-0x00000000033F3000-memory.dmp

Filesize
332KB

Download
memory/2608-147-0x00000000033A0000-0x00000000033F3000-memory.dmp

Filesize
332KB

Download
memory/2608-110-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-243-0x00000000033A0000-0x00000000033F3000-memory.dmp

Filesize
332KB

Download
memory/2608-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads