modiloader | d9acb0b8b3b285e4841eb2eded5cad21a2e43c077e03084c9381d73b6789417d

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 18:28

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General

Target

Trojan.Win32.Darkeye.exe
Size

90KB
MD5

428c86a3b536d4d0f43a73f421c5ee00
SHA1

27a85c200da3a62f00a47316060273f3613e5bc0
SHA256

d9acb0b8b3b285e4841eb2eded5cad21a2e43c077e03084c9381d73b6789417d
SHA512

d3bc493c47c75965d811015572d91996aef69e9cc70675eb279d42fb9917d6a0f3c7745273e0e4ac5319658db7f979a65f35123712b4e2528cdeb47983ef09bd
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 1 IoCs

resource	yara_rule
behavioral1/memory/1136-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2732	csrsll.exe
2264	csrsll.exe
1136	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2996	Trojan.Win32.Darkeye.exe
2996	Trojan.Win32.Darkeye.exe
2996	Trojan.Win32.Darkeye.exe
2996	Trojan.Win32.Darkeye.exe
2996	Trojan.Win32.Darkeye.exe

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/800-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-62-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-93-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2996-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/800-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2996-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2996-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/800-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2996-110-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2996-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2996-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00090000000120ff-135.dat	upx
behavioral1/memory/2996-150-0x00000000025B0000-0x0000000002603000-memory.dmp	upx
behavioral1/memory/2996-149-0x00000000025B0000-0x0000000002603000-memory.dmp	upx
behavioral1/memory/2732-152-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2996-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2732-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1136-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2264-242-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2732-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2996-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2264-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1136-262-0x0000000000400000-0x0000000000414000-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-1-5-21-3533259084-2542256011-65585152-1000\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 800 set thread context of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 2732 set thread context of 2264	2732	csrsll.exe	33
PID 2732 set thread context of 1136	2732	csrsll.exe	34

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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe
Token: SeDebugPrivilege	2264	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
800	Trojan.Win32.Darkeye.exe
2996	Trojan.Win32.Darkeye.exe
2732	csrsll.exe
2264	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 800 wrote to memory of 2996	800	Trojan.Win32.Darkeye.exe	28
PID 2996 wrote to memory of 2592	2996	Trojan.Win32.Darkeye.exe	29
PID 2996 wrote to memory of 2592	2996	Trojan.Win32.Darkeye.exe	29
PID 2996 wrote to memory of 2592	2996	Trojan.Win32.Darkeye.exe	29
PID 2996 wrote to memory of 2592	2996	Trojan.Win32.Darkeye.exe	29
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2996 wrote to memory of 2732	2996	Trojan.Win32.Darkeye.exe	32
PID 2996 wrote to memory of 2732	2996	Trojan.Win32.Darkeye.exe	32
PID 2996 wrote to memory of 2732	2996	Trojan.Win32.Darkeye.exe	32
PID 2996 wrote to memory of 2732	2996	Trojan.Win32.Darkeye.exe	32
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 2264	2732	csrsll.exe	33
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34
PID 2732 wrote to memory of 1136	2732	csrsll.exe	34

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:800
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2996
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RPNRF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - 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:2892
- - 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:2732
  - - 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:2264
  - - 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:1136

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\RPNRF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f4e87be0d8a71228c0ed0b48976fdbc5

SHA1
c03dd743a50431d19a1e0b0c81c0b02bcd7bf322

SHA256
9e26a64b2183b69c0242d8e8f7095ff8a9a2acbd93d506ba52258f7a3d695c47

SHA512
742cba6cdb692e3fab4d2476f55cf6736945ccfb3c3a397095826edbb6b15db0ce564fe2a9804c76e5f002011b416c5492a25dbc40521bf2ea36abbb29f2764a

Download Submit
memory/800-80-0x0000000000720000-0x0000000000722000-memory.dmp

Filesize
8KB

Download
memory/800-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-15-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/800-40-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/800-28-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/800-62-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-93-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-3-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/800-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-71-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/800-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/800-94-0x0000000000810000-0x0000000000863000-memory.dmp

Filesize
332KB

Download
memory/800-5-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/800-60-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/1136-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1136-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2264-242-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2264-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2732-152-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2732-158-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2732-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2732-168-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2732-179-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2732-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2996-149-0x00000000025B0000-0x0000000002603000-memory.dmp

Filesize
332KB

Download
memory/2996-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-150-0x00000000025B0000-0x0000000002603000-memory.dmp

Filesize
332KB

Download
memory/2996-110-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads