zgrat | ff013e2b5329423fcd88fd3c161eef481832e9dc19fdfa504539528452945967

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/01/2024, 12:41

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General

Target

Vnmzbixzwq.exe
Size

124KB
MD5

05b706072a3225cae1d0672917b5116e
SHA1

e7af9b2fbb08636397fdccf414f451104ea6d87c
SHA256

ff013e2b5329423fcd88fd3c161eef481832e9dc19fdfa504539528452945967
SHA512

d5147d93ec3b80c0cfd49afad941097404a8d57c3863e283fe1fa83d42feee30885848cb0bd6093eb4a185b4da8f39e731f27c566aed9ccbb897d1b5abdf4afb
SSDEEP

1536:aXA2oc074SBpgzZpJNqZxR4JQz25CxgkLC1no8OgbcRvFc1lxyyp85hwexlf64gJ:sipgVZEx+Jaxvu1no8OgbcRq1lx9Ua

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/2176-37-0x0000000005D90000-0x0000000005FF0000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-38-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-39-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-41-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-43-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-45-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-47-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-49-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-53-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-55-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-51-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-57-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-59-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-61-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-63-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-65-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-67-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-69-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-71-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-73-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-75-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-77-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-79-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-81-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-83-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-85-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-87-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-89-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-91-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-93-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-95-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-97-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-99-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1
behavioral1/memory/2176-101-0x0000000005D90000-0x0000000005FE9000-memory.dmp	family_zgrat_v1

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Ajzwm.vbs	Vnmzbixzwq.exe

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\Install name = "C:\\Users\\Admin\\AppData\\Local\\Install path\\Install name"	Vnmzbixzwq.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 2444	2176	Vnmzbixzwq.exe	31

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2176	Vnmzbixzwq.exe
2176	Vnmzbixzwq.exe

Suspicious behavior: RenamesItself 19 IoCs

pid	Process
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	Vnmzbixzwq.exe
Token: SeDebugPrivilege	2444	Vnmzbixzwq.exe
Token: SeShutdownPrivilege	2444	Vnmzbixzwq.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2444	Vnmzbixzwq.exe
2444	Vnmzbixzwq.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2460	2176	Vnmzbixzwq.exe	30
PID 2176 wrote to memory of 2460	2176	Vnmzbixzwq.exe	30
PID 2176 wrote to memory of 2460	2176	Vnmzbixzwq.exe	30
PID 2176 wrote to memory of 2460	2176	Vnmzbixzwq.exe	30
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31
PID 2176 wrote to memory of 2444	2176	Vnmzbixzwq.exe	31

C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe
"C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe
  C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe
  2⤵
  PID:2460
- C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe
  C:\Users\Admin\AppData\Local\Temp\Vnmzbixzwq.exe
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2444

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

C:\Users\Admin\AppData\Local\Temp\Cab51BA.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar521B.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/2176-73-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-59-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-1-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2176-37-0x0000000005D90000-0x0000000005FF0000-memory.dmp

Filesize
2.4MB

Download
memory/2176-38-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-39-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-41-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-43-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-45-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-47-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-49-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-53-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-55-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-51-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-57-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-75-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-61-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-63-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-65-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-67-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-69-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-71-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-2-0x00000000049C0000-0x0000000004A00000-memory.dmp

Filesize
256KB

Download
memory/2176-0-0x0000000000AC0000-0x0000000000AE6000-memory.dmp

Filesize
152KB

Download
memory/2176-971-0x0000000007160000-0x0000000007356000-memory.dmp

Filesize
2.0MB

Download
memory/2176-79-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-81-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-83-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-85-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-87-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-89-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-91-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-93-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-95-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-97-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-99-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-101-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-970-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/2176-77-0x0000000005D90000-0x0000000005FE9000-memory.dmp

Filesize
2.3MB

Download
memory/2176-972-0x00000000004F0000-0x000000000053C000-memory.dmp

Filesize
304KB

Download
memory/2176-973-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2176-974-0x00000000049C0000-0x0000000004A00000-memory.dmp

Filesize
256KB

Download
memory/2176-990-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2444-1000-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/2444-1013-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/2444-1014-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download