modiloader | a0f6dcb5d30b3076389a21407c4605ee5f8bf3f43083dffd784d557f52f6b2b6

General

Target

5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
Size

90KB
MD5

bfc4f50df7e9e8b18ea5e1d5ab0b6fea
SHA1

de44ba6076780e82734fa0c3de53c25cea153962
SHA256

a0f6dcb5d30b3076389a21407c4605ee5f8bf3f43083dffd784d557f52f6b2b6
SHA512

06c34701625dcc041d870f87727a63851295515b54b8a57bb3f1abbc7e9bb25cfd4442d49dff6d17c1d0cbf8b5c83e6f7bdbedfe3d628799a85f1e93b00f1afd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDb:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-63-0x0000000000400000-0x0000000000414000-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:

5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

2248 csrsll.exe
412 csrsll.exe
1572 csrsll.exe

pid	process
2248	csrsll.exe
412	csrsll.exe
1572	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.execsrsll.exe

description	pid	process	target process
PID 3012 set thread context of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 2248 set thread context of 412	2248	csrsll.exe	csrsll.exe
PID 2248 set thread context of 1572	2248	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/3012-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3012-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2092-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2092-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2092-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3012-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/2092-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2248-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2248-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1572-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2248-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2092-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/412-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1572-63-0x0000000000400000-0x0000000000414000-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:

csrsll.exe5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.execmd.exereg.execsrsll.execsrsll.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.execsrsll.execsrsll.exe

pid	process
3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
2248	csrsll.exe
412	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.execmd.execsrsll.exe

description	pid	process	target process
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 3012 wrote to memory of 2092	3012	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
PID 2092 wrote to memory of 2116	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	cmd.exe
PID 2092 wrote to memory of 2116	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	cmd.exe
PID 2092 wrote to memory of 2116	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	cmd.exe
PID 2116 wrote to memory of 4468	2116	cmd.exe	reg.exe
PID 2116 wrote to memory of 4468	2116	cmd.exe	reg.exe
PID 2116 wrote to memory of 4468	2116	cmd.exe	reg.exe
PID 2092 wrote to memory of 2248	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	csrsll.exe
PID 2092 wrote to memory of 2248	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	csrsll.exe
PID 2092 wrote to memory of 2248	2092	5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 412	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe
PID 2248 wrote to memory of 1572	2248	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
"C:\Users\Admin\AppData\Local\Temp\5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe
  "C:\Users\Admin\AppData\Local\Temp\5ddd22412a0bce4584c168329d5af2bd8c56d818b0834f8832433a5caa9d5243N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GHFNF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2116
  - - 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:4468
- - 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:2248
  - - 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:412
  - - 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:1572

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\GHFNF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e84ea7e900b8b434aa0f2cf34794e230

SHA1
7c7fbe88c11dc0fee8f8c0da58a113c738be9ecc

SHA256
e701d64f152e3018cae1df6931f6e77d87990690feb5492c024738f7685381b5

SHA512
3e468fc3434a17f1a831bcb95f75d72ee67ce1a7597e22c4c2adb5f20ed2ee8f50f7a25b730b569d42fa692580781f4c37e7629c8900e00b735c71abfb60efb9

Download Submit
memory/412-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1572-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2092-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2092-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2092-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2092-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2092-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2092-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2248-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3012-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3012-6-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3012-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3012-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3012-4-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/3012-3-0x0000000002B30000-0x0000000002B32000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads