zgrat | afddabb10af9cbd11a940567f1ef2a8d0483fefd47d575cae5e8e615c2f15f5b

Analysis

max time kernel
42s
max time network
16s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 11:56

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General

Target

jaser.exe
Size

286.0MB
MD5

45cf735073402183e3650f69b264323f
SHA1

e30987fc42dd931e2fcdc02474b7a8f363e7731b
SHA256

afddabb10af9cbd11a940567f1ef2a8d0483fefd47d575cae5e8e615c2f15f5b
SHA512

3844fac4876376abb4b3e249ef950b8fc806098a22e857898e61cb26ecad509fdace80685681c515c3b50cd0c14be09b09f71bb68a9f1a6383f73529cd928730
SSDEEP

6291456:re35QLVGaqBSYYvfeaQYbAJwD11CuIed8oA46BQ1:A5QLnqBSYYvAixcuIed+bM

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/1260-3-0x000000001B790000-0x000000001B9AE000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-4-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-5-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-7-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-9-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-11-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-17-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-19-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-15-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-13-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-21-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-23-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-55-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-53-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-67-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-65-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-63-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-61-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-59-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-57-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-51-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-49-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-47-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-45-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-43-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-41-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-39-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-37-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-35-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-33-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-31-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-29-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-27-0x000000001B790000-0x000000001B9A9000-memory.dmp	family_zgrat_v1
behavioral1/memory/1260-25-0x000000001B790000-0x000000001B9A9000-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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\jaser = "C:\\Users\\Admin\\AppData\\Roaming\\jaser.exe"	jaser.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe
1260	jaser.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	jaser.exe
Token: SeDebugPrivilege	1260	jaser.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1612	1260	jaser.exe	28
PID 1260 wrote to memory of 1612	1260	jaser.exe	28
PID 1260 wrote to memory of 1612	1260	jaser.exe	28
PID 1260 wrote to memory of 2132	1260	jaser.exe	29
PID 1260 wrote to memory of 2132	1260	jaser.exe	29
PID 1260 wrote to memory of 2132	1260	jaser.exe	29
PID 1260 wrote to memory of 1268	1260	jaser.exe	30
PID 1260 wrote to memory of 1268	1260	jaser.exe	30
PID 1260 wrote to memory of 1268	1260	jaser.exe	30
PID 1260 wrote to memory of 1864	1260	jaser.exe	31
PID 1260 wrote to memory of 1864	1260	jaser.exe	31
PID 1260 wrote to memory of 1864	1260	jaser.exe	31
PID 1260 wrote to memory of 1496	1260	jaser.exe	32
PID 1260 wrote to memory of 1496	1260	jaser.exe	32
PID 1260 wrote to memory of 1496	1260	jaser.exe	32
PID 1260 wrote to memory of 2336	1260	jaser.exe	33
PID 1260 wrote to memory of 2336	1260	jaser.exe	33
PID 1260 wrote to memory of 2336	1260	jaser.exe	33
PID 1260 wrote to memory of 1620	1260	jaser.exe	34
PID 1260 wrote to memory of 1620	1260	jaser.exe	34
PID 1260 wrote to memory of 1620	1260	jaser.exe	34
PID 1260 wrote to memory of 2740	1260	jaser.exe	35
PID 1260 wrote to memory of 2740	1260	jaser.exe	35
PID 1260 wrote to memory of 2740	1260	jaser.exe	35
PID 1260 wrote to memory of 2996	1260	jaser.exe	36
PID 1260 wrote to memory of 2996	1260	jaser.exe	36
PID 1260 wrote to memory of 2996	1260	jaser.exe	36
PID 1260 wrote to memory of 2108	1260	jaser.exe	37
PID 1260 wrote to memory of 2108	1260	jaser.exe	37
PID 1260 wrote to memory of 2108	1260	jaser.exe	37

C:\Users\Admin\AppData\Local\Temp\jaser.exe
"C:\Users\Admin\AppData\Local\Temp\jaser.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:1612
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2132
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:1268
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:1864
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:1496
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2336
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:1620
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2740
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2996
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2108

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/1260-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/1260-1-0x0000000001360000-0x0000000001634000-memory.dmp

Filesize
2.8MB

Download
memory/1260-2-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/1260-3-0x000000001B790000-0x000000001B9AE000-memory.dmp

Filesize
2.1MB

Download
memory/1260-4-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-5-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-7-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-9-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-11-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-17-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-19-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-15-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-13-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-21-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-23-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-55-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-53-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-67-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-65-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-63-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-61-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-59-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-57-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-51-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-49-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-47-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-45-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-43-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-41-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-39-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-37-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-35-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-33-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-4884-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/1260-31-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-29-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-27-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-25-0x000000001B790000-0x000000001B9A9000-memory.dmp

Filesize
2.1MB

Download
memory/1260-4886-0x0000000000CE0000-0x0000000000D2C000-memory.dmp

Filesize
304KB

Download
memory/1260-4885-0x0000000000600000-0x000000000065A000-memory.dmp

Filesize
360KB

Download
memory/1260-4887-0x0000000000D30000-0x0000000000D84000-memory.dmp

Filesize
336KB

Download
memory/1260-4889-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download