zgrat | 301042d2e4c7c38c45d27312dffcd8260060bc8d98ddb510dbbf7f52f1f0f151

Analysis

max time kernel
30s
max time network
160s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28-12-2023 19:20

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General

Target

f206fcd4c9308dbd966384dc94ea6811.exe
Size

451KB
MD5

f206fcd4c9308dbd966384dc94ea6811
SHA1

49e1c7affefcbdc4a69ce941704b63f0508760de
SHA256

301042d2e4c7c38c45d27312dffcd8260060bc8d98ddb510dbbf7f52f1f0f151
SHA512

efcce74dc0f7a326a54f7b7a999071236f92d1f0930630f10dbd070e4c3c4d4aef43dcaaa1d570ccb665f39490889529b4a87d73109f83f4477d60c9f2e49789
SSDEEP

6144:vuS/mbZR6tzw+HYzXfjn7FdXjxTpUQPY5e9JfQ3EIY0FY:XmbZRp+4pxxJY5cQ3EIYR

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral1/memory/1992-3-0x0000000000970000-0x00000000009B8000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

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-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\musaka = "\"C:\\Users\\Admin\\AppData\\Roaming\\musaka.exe\""	f206fcd4c9308dbd966384dc94ea6811.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1992	f206fcd4c9308dbd966384dc94ea6811.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	f206fcd4c9308dbd966384dc94ea6811.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27
PID 1992 wrote to memory of 2720	1992	f206fcd4c9308dbd966384dc94ea6811.exe	27

C:\Users\Admin\AppData\Local\Temp\f206fcd4c9308dbd966384dc94ea6811.exe
"C:\Users\Admin\AppData\Local\Temp\f206fcd4c9308dbd966384dc94ea6811.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\f206fcd4c9308dbd966384dc94ea6811.exe
  "C:\Users\Admin\AppData\Local\Temp\f206fcd4c9308dbd966384dc94ea6811.exe"
  2⤵
  PID:2720
- - C:\Windows\SysWOW64\wscript.exe
    "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Roaming\ugbeh.vbs
    3⤵
    PID:1652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1992-18-0x0000000074C70000-0x000000007535E000-memory.dmp

Filesize
6.9MB

Download
memory/1992-0-0x0000000000100000-0x0000000000176000-memory.dmp

Filesize
472KB

Download
memory/1992-2-0x00000000048C0000-0x0000000004900000-memory.dmp

Filesize
256KB

Download
memory/1992-3-0x0000000000970000-0x00000000009B8000-memory.dmp

Filesize
288KB

Download
memory/1992-1-0x0000000074C70000-0x000000007535E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-14-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-16-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-17-0x0000000074C70000-0x000000007535E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-12-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-8-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-7-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-21-0x0000000074C70000-0x000000007535E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-6-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2720-5-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download