metamorpherrat | 8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28

General

Target

8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe
Size

78KB
MD5

83b27d364390c72c4e2e7f40987a6fc0
SHA1

3513ba5080ad679d18aa7c390d88e143da07890a
SHA256

8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28
SHA512

43c4529f562df253bbfa31fdf5436c5b0f60e1e9bd9c5243a4f2bf1641e4e394f3f28cd21d651ac2c7cda8f97afe23121edcda78e029002e510636bfee78d59e
SSDEEP

1536:PuHY6M7t/vZv0kH9gDDtWzYCnJPeoYrGQtRd9/U19K:PuHYnh/l0Y9MDYrm7Rd9/B

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

Executes dropped EXE 1 IoCs

pid	Process
2208	tmpC3DB.tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe
2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\peverify = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft.CSharp.exe\""	tmpC3DB.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	tmpC3DB.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.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	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe
Token: SeDebugPrivilege	2208	tmpC3DB.tmp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2980	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	30
PID 2100 wrote to memory of 2980	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	30
PID 2100 wrote to memory of 2980	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	30
PID 2100 wrote to memory of 2980	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	30
PID 2980 wrote to memory of 2920	2980	vbc.exe	32
PID 2980 wrote to memory of 2920	2980	vbc.exe	32
PID 2980 wrote to memory of 2920	2980	vbc.exe	32
PID 2980 wrote to memory of 2920	2980	vbc.exe	32
PID 2100 wrote to memory of 2208	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	33
PID 2100 wrote to memory of 2208	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	33
PID 2100 wrote to memory of 2208	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	33
PID 2100 wrote to memory of 2208	2100	8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe	33

C:\Users\Admin\AppData\Local\Temp\8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe
"C:\Users\Admin\AppData\Local\Temp\8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- 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\erhnjw6c.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2980
- - 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\RESC478.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcC477.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2920
- C:\Users\Admin\AppData\Local\Temp\tmpC3DB.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpC3DB.tmp.exe" C:\Users\Admin\AppData\Local\Temp\8a5cd9e4083c753eb3e0f2deb6c11776b7539e6b50b0c75db022a06adb048b28N.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

System Information Discovery

1

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\RESC478.tmp

Filesize
1KB

MD5
6df0b733d9caa156ac03ddcfb3233f05

SHA1
15965f56e619d727344b2d164857a7786ff0bb89

SHA256
a818df524e066593cba14cec681aaebef827b509b884f4d30d796011f0b2a2b8

SHA512
beabddb25f973c2296d3f4671ffef4449a579caa29b53e6c48b11c6a6d3212c12803d56b2d7a9ba78fde858ce597492ae379d1c9da6ee4287b9c2259284bb082

Download Submit
C:\Users\Admin\AppData\Local\Temp\erhnjw6c.0.vb

Filesize
15KB

MD5
3afb7d59a51baa8b1473b7be376f3d97

SHA1
60d32a61a2fc868258e1fe6ec47435fa17c8a045

SHA256
f21826869ce1ce5a1d7bf755d29bd5f899c49eb56ba21f53c99f242fcc3fe8ed

SHA512
0da28127831db793ecdb293eeed6f6fce3f0f4a597b8446c7de7682756cc0f8097e4382a37b4993b14b01af0f84711594f6b6d4a5274fbaf098f925f7f2e74a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\erhnjw6c.cmdline

Filesize
266B

MD5
18c2e1ed4c919c72347d7033e9935de3

SHA1
d68fb924695feba2f25630809e46127bc7a33a65

SHA256
fc0c880a5305e718605f2f53be70f93c496a5cbe936fcd975aaf60c3aefb4556

SHA512
fabb9f8bf24cb8d5e684ad8567d43d9442d17024bd79b43bb63a39291109d943fd49537c4dcdcac0b4fc3183294378933c0c2b3183cc39f2655417e0c888680a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC3DB.tmp.exe

Filesize
78KB

MD5
0d943cf9b71cb4a51925ffbe14a08041

SHA1
d651009bcf870f69945bcd064e331d46e27af85f

SHA256
1cc7b171c5181c6fdacf0feac47b8ea4d9f467cf498953a26956c9fd8d139e5f

SHA512
41109308498d7ded61ca678fd8900e4d637e21b2bf10cda4f1366af2ccf62a1c74334d0cd4f08fe9b1cadf94018a624449e328f1c9350b2e307d98ad57385a78

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbcC477.tmp

Filesize
660B

MD5
e64f9fa747851e9215931ce73618b274

SHA1
8fb41ad49cf070609473ced2a985ca930d68d559

SHA256
332b5d6fbbb7d311ad130384d4ffcb8a2ac08b9ea8699eb0c626d6b9bd0ed7ae

SHA512
73618c3e3202d147e93c81951cfe7f30f675322ef41e92bb98cdd4dcb4c0299935b619e382beaf00deea7140fb506bccd54bb6b44de42dc4a29d098197bfe8ff

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

Filesize
62KB

MD5
8b25b4d931908b4c77ce6c3d5b9a2910

SHA1
88b65fd9733484c8f8147dad9d0896918c7e37c7

SHA256
79c261ab6b394ee23ab0fd0af48bcd96f914c6bb88b36b6815b6bbf787ecd56e

SHA512
6d954066cec5eca118601f2f848f5c9deebe3761ac285c6d45041df22e4bc4e9e2fd98c1aa4fbb6b9c735151bf8d5fffa5acddf7060a4cf3cb7e09271a4a926d

Download Submit
memory/2100-0-0x0000000074541000-0x0000000074542000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/2100-2-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/2100-24-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-8-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-18-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads