metamorpherrat | 90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3

General

Target

90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
Size

78KB
MD5

6f54873510773c474fa0f9af709ddb40
SHA1

404b71810429191229cba8ef1111bac1770cba5e
SHA256

90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3
SHA512

a4b61e9ade76719ca3f6284274daf4a3f952925a2897b6da9b1ad2476ef1abaed82e4b8da32deefac197a4fd830f0c6bc3e93b49081f96c8fd3877b3a2b0f9c2
SSDEEP

1536:tc58pXT0XRhyRjVf3hTzdEzcEGvCZ1Hc5RPuoYciQt96R9/41Sh:tc58ZSyRxvhTzXPvCbW2Ui9/j

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
2588	tmpF557.tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\aspnet_state_perf = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.Web.exe\""	tmpF557.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	tmpF557.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
Token: SeDebugPrivilege	2588	tmpF557.tmp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2760	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	30
PID 2188 wrote to memory of 2760	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	30
PID 2188 wrote to memory of 2760	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	30
PID 2188 wrote to memory of 2760	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	30
PID 2760 wrote to memory of 2796	2760	vbc.exe	32
PID 2760 wrote to memory of 2796	2760	vbc.exe	32
PID 2760 wrote to memory of 2796	2760	vbc.exe	32
PID 2760 wrote to memory of 2796	2760	vbc.exe	32
PID 2188 wrote to memory of 2588	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	33
PID 2188 wrote to memory of 2588	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	33
PID 2188 wrote to memory of 2588	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	33
PID 2188 wrote to memory of 2588	2188	90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe	33

C:\Users\Admin\AppData\Local\Temp\90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
"C:\Users\Admin\AppData\Local\Temp\90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188
- 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\79cpvrnt.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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\RESF789.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcF788.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2796
- C:\Users\Admin\AppData\Local\Temp\tmpF557.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpF557.tmp.exe" C:\Users\Admin\AppData\Local\Temp\90b1e08e656267ded360f49684fe1f9f247ee4023c63d1d6916995b2f1c626c3N.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2588

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\79cpvrnt.0.vb

Filesize
14KB

MD5
e57dd85dfd11f3adb79990ac0972f470

SHA1
d8ce58e41b057454146b16cdeba4111648267f88

SHA256
76a4e12733e90a199c37a75586826036328ded130f0089d120df0c9899fccc43

SHA512
195a57e9e887f2d0e53b8456d56bcecdd32057308978c52d846b9afd92408c8285bf064622cbd3ef600e0436808d40b0cd63709cc18b82ed08fe24fc9751647d

Download Submit
C:\Users\Admin\AppData\Local\Temp\79cpvrnt.cmdline

Filesize
266B

MD5
ae8487c54410c219dcab52b736d04119

SHA1
c588330323ddf779778d9afa1ed38c88cd755988

SHA256
fc6e8ef050c2474be153be05341e088000618ed7758017c5a74b2e159426e093

SHA512
d49baac0638c8d3d2df0074c9edcc2c047391a8d439ea6cfc917d331e49d2239cc3146c49ec326e5c914f22c1ddb7b4206d05f215ef38a9eb98eb93b09880678

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESF789.tmp

Filesize
1KB

MD5
42105acd42d085fba97dad55bac7279c

SHA1
4d6c2dd7d033ab1c36a773584f7b44f813333557

SHA256
57c0d2324b40030c3aaf156bd9909ac530130f2e4d4391f892a30fe472ea02ac

SHA512
cfaa4d4978c8a29ee9a2e22910f9b98a22198967d869f6e7ff3e950badfed413602db5053074ba2294129dad4eff7770135fd6ff80d0585221f536ae340d30a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF557.tmp.exe

Filesize
78KB

MD5
6fa841978481d23b9fcd991a20620a97

SHA1
bf53948f405c2d7824c957a9d555557dccfe4045

SHA256
75bb60535e451914900a6ad1f4b294bcc17186df21898b7c121acd265d05b530

SHA512
809a1a5c739939a0c5919626771b490b80bfa1ea35005bc5a213553487edf33bd66af6c84e2bc994d8cb8507ec5e94c5e4285a97a728c313d50cf83ecbe4425b

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbcF788.tmp

Filesize
660B

MD5
75b1f6820c30f149805950660a28a790

SHA1
d94cde9b0a0726e8e3d9dc5025682dee140513f4

SHA256
5ef705fc5e7b87c8de355056e700997017f812b2d2efb63a5431e453ab4e7819

SHA512
38928b19c375ead2be881e1dbc598566cdd60dfe1b4f0ead0ea7775a766164afb7a53efdbd3047c730d43c0539a65dd99d50c7ac498f634676dfb0c4e8bf51fd

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

Filesize
62KB

MD5
8fd8e054ba10661e530e54511658ac20

SHA1
72911622012ddf68f95c1e1424894ecb4442e6fd

SHA256
822d92b6f2bd74ba785aa1555b5963c9d7736be1a41241927343dff1caf538d7

SHA512
c14d729a30b055df18cfac5258c30574ca93bd05fb9a86b4be47ed041c7a4ceefa636bf1c2dd0ccd4c922eda785ce80127374fb70f965c1cf7cd323da5c1b24c

Download Submit
memory/2188-0-0x0000000073E71000-0x0000000073E72000-memory.dmp

Filesize
4KB

Download
memory/2188-1-0x0000000073E70000-0x000000007441B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-2-0x0000000073E70000-0x000000007441B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-24-0x0000000073E70000-0x000000007441B000-memory.dmp

Filesize
5.7MB

Download
memory/2760-8-0x0000000073E70000-0x000000007441B000-memory.dmp

Filesize
5.7MB

Download
memory/2760-18-0x0000000073E70000-0x000000007441B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads