modiloader | 3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0

General

Target

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
Size

90KB
MD5

bf0b7634ee231db17db8e127f10a2b05
SHA1

3c698121797690337b6ba52a722a0070f8c1fd06
SHA256

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0
SHA512

9895e75add538ba8dbaee2320862b5e11ca076a7859722a7eda560989ed8a7443fd86e56b0402a9643a767fae21b05e06dcee9a36211beae7c6f3ae7fa7bc1bc
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD2:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g

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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1696-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1696-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1696-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1696-61-0x0000000000400000-0x0000000000414000-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

Processes:

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

3776 csrsll.exe
4228 csrsll.exe
1696 csrsll.exe

pid	process
3776	csrsll.exe
4228	csrsll.exe
1696	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.execsrsll.exe

description	pid	process	target process
PID 1868 set thread context of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 3776 set thread context of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 set thread context of 1696	3776	csrsll.exe	csrsll.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1868-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1868-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/384-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/384-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1868-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/384-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/384-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3776-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3776-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1696-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1696-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1696-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1696-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3776-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1696-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/384-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4228-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1696-61-0x0000000000400000-0x0000000000414000-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

Processes:

reg.execsrsll.execsrsll.execsrsll.exe3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.execmd.exe

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	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe
Token: SeDebugPrivilege	4228	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.execsrsll.execsrsll.exe

pid	process
1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
3776	csrsll.exe
4228	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.execmd.execsrsll.exe

description	pid	process	target process
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 1868 wrote to memory of 384	1868	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
PID 384 wrote to memory of 2068	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	cmd.exe
PID 384 wrote to memory of 2068	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	cmd.exe
PID 384 wrote to memory of 2068	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	cmd.exe
PID 2068 wrote to memory of 1580	2068	cmd.exe	reg.exe
PID 2068 wrote to memory of 1580	2068	cmd.exe	reg.exe
PID 2068 wrote to memory of 1580	2068	cmd.exe	reg.exe
PID 384 wrote to memory of 3776	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	csrsll.exe
PID 384 wrote to memory of 3776	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	csrsll.exe
PID 384 wrote to memory of 3776	384	3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 4228	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe
PID 3776 wrote to memory of 1696	3776	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
"C:\Users\Admin\AppData\Local\Temp\3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Local\Temp\3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe
  "C:\Users\Admin\AppData\Local\Temp\3294c92f592bda7d7677ee4d81829ea352a591a93a97cbf13d78eeb544b299f0.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:384
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UTFNF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2068
  - - 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:1580
- - 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:3776
  - - 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:4228
  - - 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:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\UTFNF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
13ef059c59060bd42f934cd64192ea02

SHA1
7b1d467051efd0a70fdb5b622240fde5f4231dce

SHA256
e5be0a5833904eebccf3a45f1556593acb34ac089de472405e01936b08bb11da

SHA512
fe4a46cffbb80a6eb145bb296e58e210b791f07e0bcc421edf1aeadba3fd5aaf64a98f21da358fde000be48e67094f5ef962af531306b76223aa081b9f867a83

Download Submit
memory/384-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/384-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/384-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/384-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/384-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1696-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1696-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1696-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1696-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1696-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1696-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1868-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1868-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/3776-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3776-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3776-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4228-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads