modiloader | 1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 20:04

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General

Target

1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
Size

90KB
MD5

874ff70f0e71c6c187b5d1b10400daad
SHA1

5907977c64993430ba94426ec99cddf1dbc5b9d0
SHA256

1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c
SHA512

cf8009e1a16000b8f0ad89764e26363fedd3ffe6291f4cd955a681473b81c4467f75b0e6f1af7ad48f31b356f95cf7ab1a3035e4c858342d161ecb353afdcf57
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3P

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/1440-255-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2140	csrsll.exe
1280	csrsll.exe
1440	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.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-1-5-21-1163522206-1469769407-485553996-1000\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 2064 set thread context of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2140 set thread context of 1280	2140	csrsll.exe	36
PID 2140 set thread context of 1440	2140	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2064-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2064-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2064-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2064-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a00000001755b-142.dat	upx
behavioral1/memory/2140-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-145-0x0000000003190000-0x00000000031E3000-memory.dmp	upx
behavioral1/memory/2752-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2140-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-248-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1440-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2140-244-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1440-255-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.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	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
2140	csrsll.exe
1280	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2064 wrote to memory of 2752	2064	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	31
PID 2752 wrote to memory of 1796	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	32
PID 2752 wrote to memory of 1796	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	32
PID 2752 wrote to memory of 1796	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	32
PID 2752 wrote to memory of 1796	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	32
PID 1796 wrote to memory of 1672	1796	cmd.exe	34
PID 1796 wrote to memory of 1672	1796	cmd.exe	34
PID 1796 wrote to memory of 1672	1796	cmd.exe	34
PID 1796 wrote to memory of 1672	1796	cmd.exe	34
PID 2752 wrote to memory of 2140	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	35
PID 2752 wrote to memory of 2140	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	35
PID 2752 wrote to memory of 2140	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	35
PID 2752 wrote to memory of 2140	2752	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	35
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1280	2140	csrsll.exe	36
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37
PID 2140 wrote to memory of 1440	2140	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
"C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
  "C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PBCFR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1796
  - - 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:1672
- - 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:2140
  - - 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:1280
  - - 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:1440

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\PBCFR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4f7e6cbd5ff0bfe96b32a35bcbe01085

SHA1
90c226f1b376fda8f366e722fb61feed56164042

SHA256
d62de4556b44f4eac3005d28f993f7312c8b136c75fd707565afb297b993cbd4

SHA512
eb2ade5e457a7cc754b145b0c3827dd5c81aaa16b8e7abd6241dffa9793cd7cf0819270e8a334cdfaf9c1e571b1508300595cac69ea6e7c5b7e2e7a5b21207a3

Download Submit
memory/1280-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1440-255-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1440-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2064-61-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2064-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2064-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2064-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2064-29-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2064-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2064-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2064-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2064-103-0x0000000000620000-0x0000000000673000-memory.dmp

Filesize
332KB

Download
memory/2064-79-0x0000000000480000-0x0000000000482000-memory.dmp

Filesize
8KB

Download
memory/2064-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2064-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2064-71-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2064-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2140-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2140-164-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2140-244-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2140-175-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2140-154-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2140-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2752-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-146-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2752-145-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2752-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-147-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2752-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-248-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads