modiloader | 942eab2b3065af350aafa4f8af8f105c12413a7f5c0770be4173be73b870a203

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-09-2024 10:42

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General

Target

Trojan.Win32.Darkeye.exe
Size

90KB
MD5

1e110543b9f63c5f7cb26a008f5f2490
SHA1

71e0fc34f20275989ca393be801e7af8330fd643
SHA256

942eab2b3065af350aafa4f8af8f105c12413a7f5c0770be4173be73b870a203
SHA512

4e1aca68ded35bdc17b7056b4aea9bb17e0d53e94ec381a23f31b7f03df3a6b19793d80fd5556181c120a07e94c843b252ad84ffd9514192e3e00817b34a8c52
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 4 IoCs

resource	yara_rule
behavioral2/memory/1020-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1020-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1020-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1020-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Trojan.Win32.Darkeye.exe

Executes dropped EXE 3 IoCs

pid	Process
1804	csrsll.exe
3828	csrsll.exe
1020	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2524-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/396-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/396-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2524-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/396-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2524-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023502-29.dat	upx
behavioral2/memory/1804-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/396-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1804-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1804-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1020-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1020-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1020-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1020-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1804-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1020-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/396-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3828-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1020-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2718105630-359604950-2820636825-1000\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 2524 set thread context of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 1804 set thread context of 3828	1804	csrsll.exe	97
PID 1804 set thread context of 1020	1804	csrsll.exe	98

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	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
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe
Token: SeDebugPrivilege	3828	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2524	Trojan.Win32.Darkeye.exe
396	Trojan.Win32.Darkeye.exe
1804	csrsll.exe
3828	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 2524 wrote to memory of 396	2524	Trojan.Win32.Darkeye.exe	89
PID 396 wrote to memory of 5040	396	Trojan.Win32.Darkeye.exe	90
PID 396 wrote to memory of 5040	396	Trojan.Win32.Darkeye.exe	90
PID 396 wrote to memory of 5040	396	Trojan.Win32.Darkeye.exe	90
PID 5040 wrote to memory of 3408	5040	cmd.exe	93
PID 5040 wrote to memory of 3408	5040	cmd.exe	93
PID 5040 wrote to memory of 3408	5040	cmd.exe	93
PID 396 wrote to memory of 1804	396	Trojan.Win32.Darkeye.exe	94
PID 396 wrote to memory of 1804	396	Trojan.Win32.Darkeye.exe	94
PID 396 wrote to memory of 1804	396	Trojan.Win32.Darkeye.exe	94
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 3828	1804	csrsll.exe	97
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98
PID 1804 wrote to memory of 1020	1804	csrsll.exe	98

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:2524
- 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:396
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LYLTK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5040
  - - 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:3408
- - 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:1804
  - - 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:3828
  - - 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:1020

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\LYLTK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
980abef0ede5babbe43c792647946b1f

SHA1
722453c272963efddc5fc3c7c18fe3ddb209341a

SHA256
01963950cdfae8e5119fca44549c8a2552ff669bb11781cf37b7e0b8f9a9fa36

SHA512
c83d48512c95e29d6708a667608bc384350abe36e17893f928aa640bb0572e1b430a1becac3e78b98a9dac83d66925d1e4e92ee5a0e76742ba9216447a1695f7

Download Submit
memory/396-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/396-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/396-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/396-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/396-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/396-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1020-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1804-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1804-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1804-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1804-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/2524-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2524-5-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3828-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads