metamorpherrat | 4420efe6dfa06cea1cbbe07173c339a63678471b78c9c9cd19d287145b290ce5

General

Target

21fb0442bca8f39d0b2e984ef35f0670N.exe
Size

78KB
MD5

21fb0442bca8f39d0b2e984ef35f0670
SHA1

f0184996805cf12f2b004fe2215fde76f66b0654
SHA256

4420efe6dfa06cea1cbbe07173c339a63678471b78c9c9cd19d287145b290ce5
SHA512

ec4724ff11219fd858adec65c0784d8ce3e51b07d2b1e9003d53937ee087e47a7aeeafee1ea8f129485ce5f19bd69ee372a011fb4904ad45cfd79430316288b9
SSDEEP

1536:acRWtHFo6uaJtZAlGmWw644txVILJtcfJuovFdPKmNqOqD70Gou2P2oYe9QtL79P:5RWtHFoI3ZAtWDDILJLovbicqOq3o+nR

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

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	21fb0442bca8f39d0b2e984ef35f0670N.exe

Deletes itself 1 IoCs

pid	Process
1320	tmp8D6B.tmp.exe

Executes dropped EXE 1 IoCs

pid	Process
1320	tmp8D6B.tmp.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caspol.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallMembership.exe\""	tmp8D6B.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	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp8D6B.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21fb0442bca8f39d0b2e984ef35f0670N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	540	21fb0442bca8f39d0b2e984ef35f0670N.exe
Token: SeDebugPrivilege	1320	tmp8D6B.tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 1064	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	84
PID 540 wrote to memory of 1064	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	84
PID 540 wrote to memory of 1064	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	84
PID 1064 wrote to memory of 2776	1064	vbc.exe	87
PID 1064 wrote to memory of 2776	1064	vbc.exe	87
PID 1064 wrote to memory of 2776	1064	vbc.exe	87
PID 540 wrote to memory of 1320	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	90
PID 540 wrote to memory of 1320	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	90
PID 540 wrote to memory of 1320	540	21fb0442bca8f39d0b2e984ef35f0670N.exe	90

C:\Users\Admin\AppData\Local\Temp\21fb0442bca8f39d0b2e984ef35f0670N.exe
"C:\Users\Admin\AppData\Local\Temp\21fb0442bca8f39d0b2e984ef35f0670N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:540
- 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\4upfgldy.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1064
- - 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\RES8E75.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc7C24F9DDBB7F4095BF71B1F4AD2D4246.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2776
- C:\Users\Admin\AppData\Local\Temp\tmp8D6B.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp8D6B.tmp.exe" C:\Users\Admin\AppData\Local\Temp\21fb0442bca8f39d0b2e984ef35f0670N.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

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

Scripting

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\4upfgldy.0.vb

Filesize
15KB

MD5
fe84270507f39a3fb0aeface67a99741

SHA1
8674def473a59b262dccc2f08e95ae377b33c679

SHA256
dd2bf0259a5ce9c527bb14a18591ee10b85c1658fd737ac39777de16e03cf01c

SHA512
1477ba7ce039a7edc3e43be3d329bbd512dfd1082b0eba0944466a5bc6ac9e8bd62243a2431ba5b7469abc771f2ae401035e43afa032eb1940884954f61a4d01

Download Submit
C:\Users\Admin\AppData\Local\Temp\4upfgldy.cmdline

Filesize
266B

MD5
b4f43c69d58f57ed6d7faa0d14379ed5

SHA1
a5775b612e4c2c6c374c5614278dec27b5676313

SHA256
373672a9f859c2047cdc1d3725a8c958d072826b0e81ec207913679f92070bb9

SHA512
76351a02294cd25ea0caf21b8842e8fd6b2ca6ea30e60f0969d3c726d3e487d642aa470355c65bb407a0a69f8dddbf5ec3b27acbc9d40377315239290da9aa7d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES8E75.tmp

Filesize
1KB

MD5
72f2002e4ce404e86fa47da366b5ee42

SHA1
2e2ae12cd2baeb8b0e3a5f5512d642c9df83fd1c

SHA256
f75c7f1dbdac97a29cc2607b74e8aa72e968cd162d5969d4990c5b94f861549d

SHA512
4f9a505127ddc3d982656082ec81e9deb9949c5f3eaa0d1c1b13c7b282e76b7c2a6cc9f42fdc6852c25767cd64639ac9ef0f3ffbaf5b8729e412f3c7fb5f7eed

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8D6B.tmp.exe

Filesize
78KB

MD5
4b30c90b7012fe4c7164d9fb2bf66160

SHA1
553152a82b8158c377d94de99a45759de2d300d8

SHA256
9f28db03a9f803b4d345f6069d0449df9486bbc82e1851edef75e947ed4d47ce

SHA512
893ae9bad84f26b35d1ded22c2d528b2c75352038f9f519544c96c8e3f2d39bfa3ac54aaff3fdd7c020555c0118feb2acbd4187a83341323931336b970f1bd23

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc7C24F9DDBB7F4095BF71B1F4AD2D4246.TMP

Filesize
660B

MD5
80be0d47a70a251a68830148ff4ba57a

SHA1
96d4c20db76f72bfa9aa765e70dd2b1243417f64

SHA256
e66f80eb5546f43fef609a5059d54b7698f95b28251d070903703d6b2e1e219e

SHA512
eb5ffe08820bf6aaa0ea0c1192b43c2c313c65f5ce5443b77afe2c7a865fe9f70ca851ff32645e11f425c77bad5623f7bb8e0bf02b3a74410cd2d10581733e57

Download Submit
C:\Users\Admin\AppData\Local\Temp\zCom.resources

Filesize
62KB

MD5
a26b0f78faa3881bb6307a944b096e91

SHA1
42b01830723bf07d14f3086fa83c4f74f5649368

SHA256
b43ecda931e7af03f0768c905ed9fa82c03e41e566b1dff9960afc6b91ae5ab5

SHA512
a0e9c2814fca6bcf87e779592c005d7a8eef058a61f5a5443f7cf8d97e2316d0cde91ed51270bbcc23ccf68c7fc4a321a5a95a4eed75cb8d8a45cb3aa725fb9c

Download Submit
memory/540-1-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/540-22-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/540-0-0x0000000074AE2000-0x0000000074AE3000-memory.dmp

Filesize
4KB

Download
memory/540-2-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1064-18-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1064-9-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1320-23-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1320-24-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1320-25-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1320-26-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download
memory/1320-27-0x0000000074AE0000-0x0000000075091000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads