metamorpherrat | 4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25

General

Target

4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe
Size

78KB
MD5

3582cd6030e1db8dd72f768906e2f130
SHA1

fb55fc2001e1264e1fb7eb75148d965e705966c6
SHA256

4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25
SHA512

3b38dff43364649f5d3af5d85c1f2205b947065c33621dc36d10311071822307636fca712abe1b90d7272097eda17e1bd99cf348b4a9d627edfe5158382a0bea
SSDEEP

1536:XHFo6uaJtVpJywt04wbje3IgTazcoOEEQLwdCRoaeuProYMHQtLu9/P1Ab:XHFoI3DJywQjDgTLopLwdCFJzLu9/Q

Score

10^/10

metamorpherrat discovery 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	tmp8EF2.tmp.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059
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	tmp8EF2.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe
Token: SeDebugPrivilege	5100	tmp8EF2.tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 4560	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	83
PID 3612 wrote to memory of 4560	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	83
PID 3612 wrote to memory of 4560	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	83
PID 4560 wrote to memory of 2216	4560	vbc.exe	85
PID 4560 wrote to memory of 2216	4560	vbc.exe	85
PID 4560 wrote to memory of 2216	4560	vbc.exe	85
PID 3612 wrote to memory of 5100	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	86
PID 3612 wrote to memory of 5100	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	86
PID 3612 wrote to memory of 5100	3612	4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe	86

C:\Users\Admin\AppData\Local\Temp\4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe
"C:\Users\Admin\AppData\Local\Temp\4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612
- 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\rntvxago.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4560
- - 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\RES9078.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcE8261AB64E8D4F4CA7FD3E1716FC12C.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2216
- C:\Users\Admin\AppData\Local\Temp\tmp8EF2.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp8EF2.tmp.exe" C:\Users\Admin\AppData\Local\Temp\4d3496533ed3fc48b46bc0e544bdec26037090cccbf0473f5b53d0e6ccdd5e25N.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

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\RES9078.tmp

Filesize
1KB

MD5
de1e7122cc7a1be824c04a007fb40d44

SHA1
f74b8cedeab0ac2be5a1710b063595e97a29c72c

SHA256
79582cad1dccecd08ac3fa739b1cbdef67b75f777e2932b8adf978c310507013

SHA512
77354d282bf3a51568bc5f53cd88429a82ebd5013830f0314bb13bb6530480a5fcd8318d65b6169979771841e32d0f1d8a1c2bf47327f6d4e7b4352420c9ae34

Download Submit
C:\Users\Admin\AppData\Local\Temp\rntvxago.0.vb

Filesize
15KB

MD5
237750d27f7fae5e3a40e2288cbe8149

SHA1
8b326932537ed99facd7f4292c41980de6cf1d6e

SHA256
d12aa20fb2cc1b1244b45aa55e2e60bae498af80d45da8cd9852f05745b9f900

SHA512
e9d826b8fa56e5778d4bf80d6de3c7795160f1fc43e2e792b5d866900e39dd072a83e0aedeb0f443d87bc77e28d065a8b965c627c8c88f136c37aeb5c68c27f9

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

Filesize
266B

MD5
4ff214d61279eecd976dd6ade415e59d

SHA1
5961f5c1d1e01f7093a3be90e3dd1ff5dcdcfdc1

SHA256
da1a4e233323e6829ce64b290286b12e35f601cef1cb955e5a87a046015ad4c8

SHA512
9e12ff1e925cbd2d8db431355ec8764286caf740ecbdda4beb8e387eac49a59783c13c0af9231507605518d4bc3859261f12884d5f0a6e3e43c770bcd8da9df1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8EF2.tmp.exe

Filesize
78KB

MD5
3186309aa5b11510a6476ce931103cac

SHA1
442062380096cedb75240e89b396371bb8b62d77

SHA256
642dcc3b123cf3ceb07274927372b0cabee29ccf61ccf4b0f73cbb02ec6f8a36

SHA512
1648b602c8b80d01532b70173bc4e4db279ae85cd41d70c63fe9ce836e5975e117f4ffea7771a6d371781ea154be124176a2dabae05905d9bf01cf4f02f9b898

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbcE8261AB64E8D4F4CA7FD3E1716FC12C.TMP

Filesize
660B

MD5
d315942d6416a400e4f7dc74354c324b

SHA1
184502d0b266857badf299443bf10e6902e006cb

SHA256
79c7699349ec504d09ce789d2bbb17947ac67dc2536c9be5af1b2ab41e5fa04e

SHA512
01c8788c02ed6018f74ff57b48758c1760bac0af2291b80326ecbcf85205cece4c7c3721c079722d421e1c475f22aeabe4c74d411694ac0d6a3efaf6ce4569e4

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

Filesize
62KB

MD5
484967ab9def8ff17dd55476ca137721

SHA1
a84012f673fe1ac9041e7827cc3de4b20a1194e2

SHA256
9c0a54047f133cf4e3e4444aa57cc576c566218217ea02ad7c04a408ad01791b

SHA512
1e9a0cc800543dada73e551ee714001c4d6c57a595ea2986a4dd8889d1dffd1557735580c694e5feb0b7c27c1a4b3e71a95fab8baf80839f42f80e2109cbe2d7

Download Submit
memory/3612-2-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/3612-1-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/3612-22-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/3612-0-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

Filesize
4KB

Download
memory/4560-9-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/4560-18-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-23-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-24-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-25-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-26-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-27-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-28-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/5100-29-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download

Analysis

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