modiloader | 2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/09/2024, 19:57

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General

Target

2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
Size

90KB
MD5

d51fee3e1f838e08fc097d7a9190a65c
SHA1

1e272cf751ad6632d8e536c59ada7eff9661b1ee
SHA256

2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93
SHA512

48395c19edcdf69405f15b360500f9849089898eeeb416c07be6d6cb79ab4f2eff11c61a3351d898ee1127470846b732f58eb34ef3a7a078c19c6200504c3c01
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/1244-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
664	csrsll.exe
1608	csrsll.exe
1244	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.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-1-5-21-1488793075-819845221-1497111674-1000\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 2488 set thread context of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 664 set thread context of 1608	664	csrsll.exe	36
PID 664 set thread context of 1244	664	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2488-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2600-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-136.dat	upx
behavioral1/memory/2600-134-0x0000000003270000-0x00000000032C3000-memory.dmp	upx
behavioral1/memory/2600-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/664-223-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1244-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/664-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2600-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1608-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1244-261-0x0000000000400000-0x0000000000414000-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	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
664	csrsll.exe
1608	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2488 wrote to memory of 2600	2488	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	31
PID 2600 wrote to memory of 2856	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	32
PID 2600 wrote to memory of 2856	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	32
PID 2600 wrote to memory of 2856	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	32
PID 2600 wrote to memory of 2856	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	32
PID 2856 wrote to memory of 988	2856	cmd.exe	34
PID 2856 wrote to memory of 988	2856	cmd.exe	34
PID 2856 wrote to memory of 988	2856	cmd.exe	34
PID 2856 wrote to memory of 988	2856	cmd.exe	34
PID 2600 wrote to memory of 664	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	35
PID 2600 wrote to memory of 664	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	35
PID 2600 wrote to memory of 664	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	35
PID 2600 wrote to memory of 664	2600	2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe	35
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1608	664	csrsll.exe	36
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37
PID 664 wrote to memory of 1244	664	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
"C:\Users\Admin\AppData\Local\Temp\2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe
  "C:\Users\Admin\AppData\Local\Temp\2ed854f78a55a25f68bf507868a08eac5888fb5b3ad6ccef37d18df39c556c93.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PURFR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - 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:988
- - 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:664
  - - 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:1608
  - - 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:1244

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\PURFR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f8071b7cd0d0c1c4c68f6f69e26faa53

SHA1
722d5ce7fa5ea95a43f467859e67f205c576c127

SHA256
10ada3002a05a27f88dec4c81ba557abaad1646565cba1af7214e667383bec1e

SHA512
cececd3b88267273b12075acbdc22d0fceab78215e6d270623911b6332496d6511b5c7628d07b0bf66defed94de2144409d9e3dbae4507c7c764cc5931c03332

Download Submit
memory/664-156-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/664-223-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/664-177-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/664-166-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/664-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1244-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1244-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-80-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2488-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2488-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2488-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2488-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2488-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2488-41-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2488-29-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2488-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2488-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2600-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-149-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-148-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-147-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-134-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-218-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-213-0x0000000003270000-0x00000000032C3000-memory.dmp

Filesize
332KB

Download
memory/2600-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2600-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads