metamorpherrat | 8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/11/2024, 00:19

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General

Target
8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe
Size 78KB
Sample241110-amd41ayjcn
SHA256 8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d
MD5 5c5a19cf726d11843e5ee1e5c80b3dc2
SHA1 6f08a081dadc5178be6d4f235b0cbf799131bb9a
SHA512 6dcbff743ef74ff8015fc40dfef6b5556cb0d41c1387dc7b419d84e1d70c8665acb8b94fbec14640c5ee78a5c8da7c6b8309f437c0d1b10da5ed6baab64a725d
SSDEEP 1536:G58vXT0XRhyRjVf3znOJTv3lcUK/+dWzCP7oYTcSQtN6F9/131/U:G58PSyRxvY3md+dWWZye9/U
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

metamorpherrat discovery persistence rat stealer trojan

Malware Config

Signatures

MetamorpherRAT
Metamorpherrat is a hacking tool that has been around for a while since 2013.
trojan rat stealer metamorpherrat
Metamorpherrat family
metamorpherrat

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe

Executes dropped EXE 1 IoCs

pid	Process
4976	tmpAC6C.tmp.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShFusRes = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\big5.exe\""	tmpAC6C.tmp.exe

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 4 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	tmpAC6C.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe
Token: SeDebugPrivilege	4976	tmpAC6C.tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 4176	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	84
PID 4988 wrote to memory of 4176	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	84
PID 4988 wrote to memory of 4176	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	84
PID 4176 wrote to memory of 2316	4176	vbc.exe	87
PID 4176 wrote to memory of 2316	4176	vbc.exe	87
PID 4176 wrote to memory of 2316	4176	vbc.exe	87
PID 4988 wrote to memory of 4976	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	89
PID 4988 wrote to memory of 4976	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	89
PID 4988 wrote to memory of 4976	4988	8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe	89

C:\Users\Admin\AppData\Local\Temp\8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe
"C:\Users\Admin\AppData\Local\Temp\8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\yiasci_m.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4176
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESAD76.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcC1C1610989BF4D959A2D27ECC338DD59.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2316
- C:\Users\Admin\AppData\Local\Temp\tmpAC6C.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpAC6C.tmp.exe" C:\Users\Admin\AppData\Local\Temp\8a4d6138ab5751bdf110ca246ddbb916a3e0509d3d4a7ca38f68def1dc40601d.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Query Registry

T1012

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

RESAD76.tmp

Path C:\Users\Admin\AppData\Local\Temp\RESAD76.tmp
Size 1KB
SHA256 ce4ae9cc6211cc53c91efbdd3e074aafb44ccd5da2e346a0531bcb4a76753ca7
MD5 612ba02722b94b65c575ec08154d712d
SHA1 02eba725489c26f99c5460bd6567f5e251db5057
SHA512 635650bcfed1095c701d63cd5d12f012fcc4397ba55de93fc68d670f915b8fe00ac3f67f0cc6c76d53df5fb5056be1aae661f368fda9ee91fbc653a6702e52a4
MD5 SHA1 SHA512

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tmpAC6C.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmpAC6C.tmp.exe
Size 78KB
SHA256 ba2a958c718c64a6b9d237194e2172fbd723145e00e9a38def2a928b194226f7
MD5 5ab426fde4a8b7f1ce73be521018988f
SHA1 bba0e25fd638f63c400cda90b793ab9407d40411
SHA512 ccfb934eb6008ef0479032911ff12d14ffae61c194043c43dcfa2656ce6fd1f0ca164fd7f426ab4f5dd0c14e72aa660e1a830d567c4d8dcf1940c80f3dba1b6c
SSDEEP 1536:ltHY6M3xXT0XRhyRjVf3znOJTv3lcUK/+dWzCP7oYTcSQtLG9/p1zJ:ltHYn3xSyRxvY3md+dWWZyLG9/R
MD5 SHA1 SHA512 SSDEEP

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vbcC1C1610989BF4D959A2D27ECC338DD59.TMP

Path C:\Users\Admin\AppData\Local\Temp\vbcC1C1610989BF4D959A2D27ECC338DD59.TMP
Size 660B
SHA256 c48aa42071878e50ff68fa58aabfac0b06033886525569f427c13ace11edeb7f
MD5 dc757ca3bc357e0fe0704b12282f4fd2
SHA1 8860eb54e9cc4c70a9a6f74667823d52f7a4641e
SHA512 96bb8bd653ac0cae7ebbdc63ac7d44be7e42041ee8e90a8b641b2c460dc74c89df7ed8525e84bdc734f478f2d298b49e722cc091b041c44dd9cc5438adde288e
MD5 SHA1 SHA512

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yiasci_m.0.vb

Path C:\Users\Admin\AppData\Local\Temp\yiasci_m.0.vb
Size 14KB
SHA256 4c4cc5b8a5f48a0b5d6d4d481f9c152250766e48ecacee36c349dab8c0e9916e
MD5 a39b959bf8a0162544c011213112b5d7
SHA1 62337720138fc7695ccf1c299b4c2dc6c634499f
SHA512 4436087b4294f47b5c894e95ac08051832a59d1757a19eeaa38c0a5a99c17566c5d821fddb46fa8dd47c1113dc563e91127db05a7569a436d9e6bc8252af5a2a
SSDEEP 384:rrNpNJrNdX+NV6KNENlNlJcHbzE6NGzN7QKSN7eP:1jbdXyVtGXlJcHzGhB+m
MD5 SHA1 SHA512 SSDEEP

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yiasci_m.cmdline

Path C:\Users\Admin\AppData\Local\Temp\yiasci_m.cmdline
Size 266B
SHA256 2434fcec1c7e96587ee8b9ecfa73410d06700790884a422d1edfa20663b1ada5
MD5 8ace35f4e5472d6a258ab2fb31ec8dcc
SHA1 4fb84eb323b54647903535adc5a69c6a01658b05
SHA512 b1416a613dfda45f5be7286e34aa1727cc0be268b942cc653057992a6ab4f81f84f2ac8b5c9498e652f868472e98b3491f761e1b92638db4aaf64642d5b9c613
MD5 SHA1 SHA512

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zCom.resources

Path C:\Users\Admin\AppData\Local\Temp\zCom.resources
Size 62KB
SHA256 e54a257fa391065c120f55841de8c11116ea0e601d90fe1a35dcd340c5dd9cd5
MD5 4f0e8cf79edb6cd381474b21cabfdf4a
SHA1 7018c96b4c5dab7957d4bcdc82c1e7bb3a4f80c4
SHA512 2451a59d09464e30d0df822d9322dbecb83faa92c5a5b71b7b9db62330c40cc7570d66235f137290074a3c4a9f3d8b3447067ed135f1bb60ea9e18d0df39a107
SSDEEP 1536:3XT0XRhyRjVf3znOJTv3lcUK/+dWzCP7oYTcSQtQ:nSyRxvY3md+dWWZyQ
MD5 SHA1 SHA512 SSDEEP

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memory/4176-18-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4176-9-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-24-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-23-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-26-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-27-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-28-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-29-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4976-30-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4988-2-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4988-1-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4988-22-0x0000000075380000-0x0000000075931000-memory.dmp

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memory/4988-0-0x0000000075382000-0x0000000075383000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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