modiloader | 912adf81268de8c9415febf8d6f31abe8f188aafc34495f426da2130bd0e92ed

Analysis

max time kernel
119s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 23:04

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General

Target

Trojan.Win32.Darkeye.exe
Size

326KB
MD5

06d233033119e0c502f257b4d68a4850
SHA1

24d718d6cfe8c1d710d1f7232a0f4cb013570348
SHA256

912adf81268de8c9415febf8d6f31abe8f188aafc34495f426da2130bd0e92ed
SHA512

934886262b8dbd4dcccfec5c8b9a2d1dda2d75cc5f8b4d1a79af92d626a89dc07737bfd66c96aa2a3ae47f202f91f562baee2fd412581200b07a79d550791c5d
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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 4 IoCs

resource	yara_rule
behavioral2/memory/1608-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1608-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1608-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1608-60-0x0000000000400000-0x0000000000414000-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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Trojan.Win32.Darkeye.exe

Executes dropped EXE 3 IoCs

pid	Process
3532	csrsll.exe
4836	csrsll.exe
1608	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4284-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4284-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/64-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/64-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/64-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4284-10-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x00080000000234a5-28.dat	upx
behavioral2/memory/3532-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/64-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3532-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3532-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1608-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3532-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/64-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4836-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-60-0x0000000000400000-0x0000000000414000-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-1-5-21-1302416131-1437503476-2806442725-1000\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 4284 set thread context of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 3532 set thread context of 4836	3532	csrsll.exe	95
PID 3532 set thread context of 1608	3532	csrsll.exe	96

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	Trojan.Win32.Darkeye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.Darkeye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe
Token: SeDebugPrivilege	4836	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4284	Trojan.Win32.Darkeye.exe
64	Trojan.Win32.Darkeye.exe
3532	csrsll.exe
4836	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 4284 wrote to memory of 64	4284	Trojan.Win32.Darkeye.exe	87
PID 64 wrote to memory of 1836	64	Trojan.Win32.Darkeye.exe	88
PID 64 wrote to memory of 1836	64	Trojan.Win32.Darkeye.exe	88
PID 64 wrote to memory of 1836	64	Trojan.Win32.Darkeye.exe	88
PID 1836 wrote to memory of 2860	1836	cmd.exe	91
PID 1836 wrote to memory of 2860	1836	cmd.exe	91
PID 1836 wrote to memory of 2860	1836	cmd.exe	91
PID 64 wrote to memory of 3532	64	Trojan.Win32.Darkeye.exe	92
PID 64 wrote to memory of 3532	64	Trojan.Win32.Darkeye.exe	92
PID 64 wrote to memory of 3532	64	Trojan.Win32.Darkeye.exe	92
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 4836	3532	csrsll.exe	95
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96
PID 3532 wrote to memory of 1608	3532	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:64
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WJANJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1836
  - - 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:2860
- - 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:3532
  - - 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:4836
  - - 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:1608

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\WJANJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
b496d54d16455c5f58ec19b412364784

SHA1
c313e18f289b1f3ba0a73a2991d4eb7815e69abb

SHA256
fd41631ac13d3017b7bcd799d86b60f0290c15a5985a691d3f041c2a150f1f96

SHA512
0f056cf0bf3b5bf85868190c1a86c94e28c3ee117aca7110a9d04c0036819193609f13dc1895770cdf8224023b29579502b0a44ffd96273435fc8d15d7720e95

Download Submit
memory/64-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/64-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/64-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/64-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/64-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3532-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3532-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3532-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3532-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4284-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4284-5-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4284-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4284-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4284-10-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4284-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4836-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads