modiloader | a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6

Analysis

max time kernel
59s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 20:00

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General

Target

a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
Size

90KB
MD5

ed351b51146f96f8685751237a2ba886
SHA1

db02b63c55e9abf5f1efa54860fc5560e9647e77
SHA256

a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6
SHA512

eb9dd6d0cdd038b9376b37eede22f8c179b84a680eb6bcc7b74f7fdeccd60ad8528ac22ba70bb261b97ddf6836be3894bfe5c6b1b81549b7c3b98d9bae067c60
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 family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/372-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2956	csrsll.exe
372	csrsll.exe
1792	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.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-1-5-21-2703099537-420551529-3771253338-1000\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 2340 set thread context of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2956 set thread context of 1792	2956	csrsll.exe	36
PID 2956 set thread context of 372	2956	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2340-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2340-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2340-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1868-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2340-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-130.dat	upx
behavioral1/memory/2956-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1868-144-0x0000000003470000-0x00000000034C3000-memory.dmp	upx
behavioral1/memory/1868-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2956-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/372-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1868-248-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2956-242-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/372-257-0x0000000000400000-0x0000000000414000-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	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	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe
Token: SeDebugPrivilege	1792	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
2956	csrsll.exe
1792	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 2340 wrote to memory of 1868	2340	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	31
PID 1868 wrote to memory of 3008	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	32
PID 1868 wrote to memory of 3008	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	32
PID 1868 wrote to memory of 3008	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	32
PID 1868 wrote to memory of 3008	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	32
PID 3008 wrote to memory of 2904	3008	cmd.exe	34
PID 3008 wrote to memory of 2904	3008	cmd.exe	34
PID 3008 wrote to memory of 2904	3008	cmd.exe	34
PID 3008 wrote to memory of 2904	3008	cmd.exe	34
PID 1868 wrote to memory of 2956	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	35
PID 1868 wrote to memory of 2956	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	35
PID 1868 wrote to memory of 2956	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	35
PID 1868 wrote to memory of 2956	1868	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	35
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 1792	2956	csrsll.exe	36
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37
PID 2956 wrote to memory of 372	2956	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
"C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
  "C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PGYQM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - 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:2904
- - 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:2956
  - - 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:1792
  - - 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:372

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\PGYQM.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b35100200b0aaa0997fdd4eb11864873

SHA1
cdfbe095d076df02e4cbb25efc0cd69eccfbe19a

SHA256
90f44297cf05a3ca39b7b059dbf2f7f2fe6ddfecc04ee0dea9731c82672c62a0

SHA512
2ae6aad3e11087e8b0e937e5dcaa3cfccfacb32abdc85602e63e0bd05a3d4945fd5ec1d51ea9b3eb5bb0d91dd21e676418e16c92b46e64410015ec8d98128338

Download Submit
memory/372-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/372-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1792-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-146-0x0000000003470000-0x00000000034C3000-memory.dmp

Filesize
332KB

Download
memory/1868-248-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-144-0x0000000003470000-0x00000000034C3000-memory.dmp

Filesize
332KB

Download
memory/1868-145-0x0000000003470000-0x00000000034C3000-memory.dmp

Filesize
332KB

Download
memory/1868-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-249-0x0000000003470000-0x00000000034C3000-memory.dmp

Filesize
332KB

Download
memory/1868-209-0x0000000003470000-0x00000000034C3000-memory.dmp

Filesize
332KB

Download
memory/1868-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1868-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2340-103-0x0000000002760000-0x00000000027B3000-memory.dmp

Filesize
332KB

Download
memory/2340-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2340-29-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2340-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2340-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2340-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2340-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2340-71-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2340-41-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2340-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2340-5-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2340-61-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2340-15-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2340-79-0x00000000004D0000-0x00000000004D2000-memory.dmp

Filesize
8KB

Download
memory/2956-154-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2956-164-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2956-175-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2956-242-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2956-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2956-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads