modiloader | c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/12/2024, 23:34

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General

Target

c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
Size

326KB
MD5

c3baa5ac8a7ebf2e9a70bf10b7b3ab77
SHA1

ed9794b1bf6be6fcb021a4975035d8c4a6073c59
SHA256

c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b
SHA512

c138aee4bd623cfe31e1c34ae137b7b7773d16791e97cfca658fa10c44bc749ef6f04a06781d5b448e9634216fb8bcec6a98abd80d500e036b31d939837b0c25
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVq:csxD5cwohO+O1sVG0/pZ6iPC8d

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/1600-253-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1848	csrsll.exe
1508	csrsll.exe
1600	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2956 set thread context of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 1848 set thread context of 1508	1848	csrsll.exe	36
PID 1848 set thread context of 1600	1848	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2956-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2956-87-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2956-85-0x0000000000090000-0x0000000000190000-memory.dmp	upx
behavioral1/memory/2956-84-0x0000000000090000-0x0000000000190000-memory.dmp	upx
behavioral1/memory/2800-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2956-102-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2800-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2800-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2800-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2800-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2800-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000164c8-129.dat	upx
behavioral1/memory/2800-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1848-208-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2800-245-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1600-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1848-242-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1508-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1600-253-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.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	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
1848	csrsll.exe
1508	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2956 wrote to memory of 2800	2956	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	31
PID 2800 wrote to memory of 1472	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	32
PID 2800 wrote to memory of 1472	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	32
PID 2800 wrote to memory of 1472	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	32
PID 2800 wrote to memory of 1472	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	32
PID 1472 wrote to memory of 2324	1472	cmd.exe	34
PID 1472 wrote to memory of 2324	1472	cmd.exe	34
PID 1472 wrote to memory of 2324	1472	cmd.exe	34
PID 1472 wrote to memory of 2324	1472	cmd.exe	34
PID 2800 wrote to memory of 1848	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	35
PID 2800 wrote to memory of 1848	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	35
PID 2800 wrote to memory of 1848	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	35
PID 2800 wrote to memory of 1848	2800	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	35
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1508	1848	csrsll.exe	36
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37
PID 1848 wrote to memory of 1600	1848	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
"C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
  "C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OPKIL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1472
  - - 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:2324
- - 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:1848
  - - 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:1508
  - - 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:1600

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\OPKIL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
582a7c127ee39399e6267db0c5a4fe5d

SHA1
218285e1450530a2635b5a2d308eff20176d0909

SHA256
b60f4b24fa0470bf62b44dd6fa3ab9890727a841db517cc117c29db5352711bf

SHA512
3317886c2b734737569ba587d74eccd70cfff3d6f8a43f668238f8cb7b711afc4937823b8aa5dd4bd70754d3bc749f4d6e87ae4e88c47fd9454c73dc257eaea6

Download Submit
memory/1508-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1600-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1848-242-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1848-174-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1848-208-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1848-163-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1848-153-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2800-144-0x00000000030D0000-0x0000000003124000-memory.dmp

Filesize
336KB

Download
memory/2800-146-0x00000000030D0000-0x0000000003124000-memory.dmp

Filesize
336KB

Download
memory/2800-245-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-95-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2800-143-0x00000000030C0000-0x0000000003114000-memory.dmp

Filesize
336KB

Download
memory/2800-145-0x00000000030D0000-0x0000000003124000-memory.dmp

Filesize
336KB

Download
memory/2956-87-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2956-104-0x0000000002550000-0x00000000025A4000-memory.dmp

Filesize
336KB

Download
memory/2956-84-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2956-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2956-78-0x0000000001C60000-0x0000000001C62000-memory.dmp

Filesize
8KB

Download
memory/2956-102-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2956-40-0x0000000001BA0000-0x0000000001BA1000-memory.dmp

Filesize
4KB

Download
memory/2956-28-0x0000000001B80000-0x0000000001B81000-memory.dmp

Filesize
4KB

Download
memory/2956-85-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2956-70-0x0000000001C40000-0x0000000001C41000-memory.dmp

Filesize
4KB

Download
memory/2956-60-0x0000000001C20000-0x0000000001C21000-memory.dmp

Filesize
4KB

Download
memory/2956-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2956-15-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2956-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2956-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads