modiloader | c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b

Analysis

max time kernel
119s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 23:29

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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 4 IoCs

resource	yara_rule
behavioral2/memory/3320-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3320-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3320-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3320-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe

Executes dropped EXE 3 IoCs

pid	Process
4940	csrsll.exe
3808	csrsll.exe
3320	csrsll.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-1-5-21-2045521122-590294423-3465680274-1000\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 920 set thread context of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 4940 set thread context of 3808	4940	csrsll.exe	101
PID 4940 set thread context of 3320	4940	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/920-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/920-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3612-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3612-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/920-11-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3612-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023caf-27.dat	upx
behavioral2/memory/3612-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4940-38-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4940-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3320-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4940-54-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3612-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3808-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3320-58-0x0000000000400000-0x0000000000414000-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	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
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe
Token: SeDebugPrivilege	3808	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
4940	csrsll.exe
3808	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 920 wrote to memory of 3612	920	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	84
PID 3612 wrote to memory of 400	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	87
PID 3612 wrote to memory of 400	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	87
PID 3612 wrote to memory of 400	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	87
PID 400 wrote to memory of 1476	400	cmd.exe	91
PID 400 wrote to memory of 1476	400	cmd.exe	91
PID 400 wrote to memory of 1476	400	cmd.exe	91
PID 3612 wrote to memory of 4940	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	92
PID 3612 wrote to memory of 4940	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	92
PID 3612 wrote to memory of 4940	3612	c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe	92
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3808	4940	csrsll.exe	101
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102
PID 4940 wrote to memory of 3320	4940	csrsll.exe	102

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:920
- C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe
  "C:\Users\Admin\AppData\Local\Temp\c89e7c6d1873e97ef9cf9aef381969b6f03926b1b6b2d6fbcc9dd01fcf31032b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UYKLI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:400
  - - 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:1476
- - 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:4940
  - - 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:3808
  - - 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:3320

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

Query Registry

T1012

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\UYKLI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
011c2d6ae94b9fbba41a5019a1996732

SHA1
ef090b74bfb0f2297ad6e4e68216f50f171ef119

SHA256
2c911dfcb5b22ed3e6da8edfffd84333c875b934a578e460f8fa6fc5945143ef

SHA512
7344bfddad2a0c38b9c118858ad63074b9cf75df1c0f8241b988d4275cf44da37bd35190f26121205294aa9ef5a87b4d55711325516a1f2f2831034644404524

Download Submit
memory/920-3-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/920-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/920-5-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/920-6-0x0000000002210000-0x0000000002212000-memory.dmp

Filesize
8KB

Download
memory/920-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/920-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3320-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3808-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4940-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4940-38-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4940-54-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads