modiloader | 3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1

General

Target

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
Size

90KB
MD5

358cf2a7c196a240f9e34665d21fee5c
SHA1

7977caccc58f21e804008321ad5d9e4526ff6615
SHA256

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1
SHA512

558343c68ed2f214b48171b77b97f810b224281dfe78c5900df5f2a31e09892df055063dea33861a5bd94563129f1282af5cff7741b6aec3a160f644069b55bb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDE: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/4128-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4128-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4128-62-0x0000000000400000-0x0000000000414000-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:

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

4952 csrsll.exe
2324 csrsll.exe
4128 csrsll.exe

pid	process
4952	csrsll.exe
2324	csrsll.exe
4128	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.execsrsll.exe

description	pid	process	target process
PID 4744 set thread context of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4952 set thread context of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 set thread context of 4128	4952	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/4744-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4744-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/864-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/864-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4744-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/864-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/864-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4952-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4952-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4128-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4952-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4128-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/864-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2324-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4128-62-0x0000000000400000-0x0000000000414000-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:

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.execmd.exereg.execsrsll.execsrsll.execsrsll.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe
Token: SeDebugPrivilege	2324	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.execsrsll.execsrsll.exe

pid	process
4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
4952	csrsll.exe
2324	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.execmd.execsrsll.exe

description	pid	process	target process
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 4744 wrote to memory of 864	4744	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
PID 864 wrote to memory of 1416	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	cmd.exe
PID 864 wrote to memory of 1416	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	cmd.exe
PID 864 wrote to memory of 1416	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	cmd.exe
PID 1416 wrote to memory of 3096	1416	cmd.exe	reg.exe
PID 1416 wrote to memory of 3096	1416	cmd.exe	reg.exe
PID 1416 wrote to memory of 3096	1416	cmd.exe	reg.exe
PID 864 wrote to memory of 4952	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	csrsll.exe
PID 864 wrote to memory of 4952	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	csrsll.exe
PID 864 wrote to memory of 4952	864	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 2324	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe
PID 4952 wrote to memory of 4128	4952	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
"C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
  "C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EOHGI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1416
  - - 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:3096
- - 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:4952
  - - 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:2324
  - - 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:4128

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f2403399d0d67d96c2b626329f5802a3

SHA1
fe780730014a6239c18d7280e80de58de7fd1baf

SHA256
44d07a9f722f4d0fb925070b19c9c0e15576482bfa6d646289f800fbd9d8a7ca

SHA512
d5c85a9ee3db2f55c510c60370189342d4023320c823fd9076ddf6096faaa3200c9ff90b2d3659364430c3bd3877e9394ddf5aff4d410eea60d37dbedd596490

Download Submit
memory/864-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/864-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/864-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/864-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/864-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4128-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4744-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4744-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4744-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4744-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4744-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4952-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads