modiloader | cdb193314c1cf8c960cb20407ebd32ebe97caef67ffe8a1b174069f62f535e7b

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 10:07

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General

Target

a74d7423c25a37ebbd6b9ac9f11d7270N.exe
Size

90KB
MD5

a74d7423c25a37ebbd6b9ac9f11d7270
SHA1

0432d9da1dfad0442e2b837d7e310082908b49cd
SHA256

cdb193314c1cf8c960cb20407ebd32ebe97caef67ffe8a1b174069f62f535e7b
SHA512

6a24bd87982174af21480e1b6670d195591a81ae543043c224fd1f9acb76dee331ddb88b852920e56201228f8fa1b8cd4cc309bd93448439201deb3839864eac
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/1060-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1060-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2588	csrsll.exe
1356	csrsll.exe
1060	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2260-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2260-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2260-85-0x0000000000090000-0x0000000000190000-memory.dmp	upx
behavioral1/memory/2260-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0009000000019218-129.dat	upx
behavioral1/memory/2600-143-0x00000000031B0000-0x0000000003203000-memory.dmp	upx
behavioral1/memory/2600-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1060-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2588-245-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1356-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1060-259-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-3290804112-2823094203-3137964600-1000\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 2260 set thread context of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2588 set thread context of 1356	2588	csrsll.exe	36
PID 2588 set thread context of 1060	2588	csrsll.exe	37

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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe
Token: SeDebugPrivilege	1356	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe
2588	csrsll.exe
1356	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2260 wrote to memory of 2600	2260	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	31
PID 2600 wrote to memory of 1112	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	32
PID 2600 wrote to memory of 1112	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	32
PID 2600 wrote to memory of 1112	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	32
PID 2600 wrote to memory of 1112	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	32
PID 1112 wrote to memory of 544	1112	cmd.exe	34
PID 1112 wrote to memory of 544	1112	cmd.exe	34
PID 1112 wrote to memory of 544	1112	cmd.exe	34
PID 1112 wrote to memory of 544	1112	cmd.exe	34
PID 2600 wrote to memory of 2588	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	35
PID 2600 wrote to memory of 2588	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	35
PID 2600 wrote to memory of 2588	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	35
PID 2600 wrote to memory of 2588	2600	a74d7423c25a37ebbd6b9ac9f11d7270N.exe	35
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1356	2588	csrsll.exe	36
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37
PID 2588 wrote to memory of 1060	2588	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\a74d7423c25a37ebbd6b9ac9f11d7270N.exe
"C:\Users\Admin\AppData\Local\Temp\a74d7423c25a37ebbd6b9ac9f11d7270N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\a74d7423c25a37ebbd6b9ac9f11d7270N.exe
  "C:\Users\Admin\AppData\Local\Temp\a74d7423c25a37ebbd6b9ac9f11d7270N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OTFDH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1112
  - - 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:544
- - 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:2588
  - - 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:1356
  - - 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:1060

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\OTFDH.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9fb424db9268a52af1e11d127c7e3f1b

SHA1
4b2214b093de641b9dd49b84c67e300f5c26d095

SHA256
1fec6849001bb024d8035ecbfc837ed27339ddea22b969ffd7b46b8b8e525218

SHA512
40b2b72d316ccd8fb2f4330d977fd6db1743d12479009eab45f6fb86a55d1aad2baa2b94301f2585b49b1d003fcd98fb8079886b5b1f74332a066e3e96bfee28

Download Submit
memory/1060-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1060-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1356-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2260-61-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2260-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2260-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2260-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2260-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2260-71-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2260-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2260-79-0x0000000000320000-0x0000000000322000-memory.dmp

Filesize
8KB

Download
memory/2260-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2260-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2260-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2260-86-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2260-85-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2260-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2260-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2588-164-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2588-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2588-175-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2588-154-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2588-245-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2600-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2600-146-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-145-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-144-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-143-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-147-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-209-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-252-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-248-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-247-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2600-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads