zgrat | c459d4ad0e9750f95155436821bbfc058869d82ea98372a1de1b5a927a60125f

Analysis

max time kernel
135s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 01:56

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General

Target

be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
Size

474KB
MD5

ec3e0e37a0706e727186ef4a1d338b48
SHA1

549d90919104da57c9ed2e6cbc3d4a654b32162b
SHA256

be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5
SHA512

6010946af214b0015b899f1fb1086a66a0e5d0851a35256f3294ea92e3557912cd129569220c69a4f593db37ad9027c3c7c297f904965ea9cc2e8af61a7a0862
SSDEEP

6144:hxxxVzbfkDOMpkMQ2S/YUa/fdchxRhu9X:hxxYtB8//acRuX

Score

10^/10

zgrat rat spyware stealer

Malware Config

Signatures

Detect ZGRat V1 33 IoCs

resource	yara_rule
behavioral2/memory/3900-16-0x0000000004EA0000-0x0000000004F7C000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-18-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-17-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-20-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-22-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-26-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-28-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-34-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-40-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-48-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-62-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-76-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-78-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-74-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-72-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-70-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-68-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-66-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-64-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-60-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-58-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-56-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-54-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-52-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-50-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-46-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-44-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-42-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-38-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-36-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-32-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-30-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1
behavioral2/memory/3900-24-0x0000000004EA0000-0x0000000004F76000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Downloads MZ/PE file

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1696 set thread context of 3900	1696	WindowsLibrary.exe	97
PID 3876 set thread context of 1108	3876	WindowsLibrary.exe	103

Executes dropped EXE 3 IoCs

pid	Process
1696	WindowsLibrary.exe
3876	WindowsLibrary.exe
4124	WindowsLibrary.exe

Creates scheduled task(s) 1 TTPs 5 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1076	SCHtAsKs.EXe
2068	SCHtAsKs.EXe
2848	SCHtAsKs.EXe
4736	SCHtAsKs.EXe
1388	SCHtAsKs.EXe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
1696	WindowsLibrary.exe
1696	WindowsLibrary.exe
556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
3876	WindowsLibrary.exe
3876	WindowsLibrary.exe
4124	WindowsLibrary.exe
4124	WindowsLibrary.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
Token: SeDebugPrivilege	1696	WindowsLibrary.exe
Token: SeDebugPrivilege	3900	RegAsm.exe
Token: SeDebugPrivilege	3876	WindowsLibrary.exe
Token: SeDebugPrivilege	1108	RegAsm.exe
Token: SeDebugPrivilege	4124	WindowsLibrary.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 556 wrote to memory of 1076	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	82
PID 556 wrote to memory of 1076	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	82
PID 556 wrote to memory of 2068	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	84
PID 556 wrote to memory of 2068	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	84
PID 1696 wrote to memory of 2848	1696	WindowsLibrary.exe	91
PID 1696 wrote to memory of 2848	1696	WindowsLibrary.exe	91
PID 556 wrote to memory of 1120	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	96
PID 556 wrote to memory of 1120	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	96
PID 556 wrote to memory of 1120	556	be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe	96
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 1696 wrote to memory of 3900	1696	WindowsLibrary.exe	97
PID 3876 wrote to memory of 4736	3876	WindowsLibrary.exe	100
PID 3876 wrote to memory of 4736	3876	WindowsLibrary.exe	100
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 3876 wrote to memory of 1108	3876	WindowsLibrary.exe	103
PID 4124 wrote to memory of 1388	4124	WindowsLibrary.exe	105
PID 4124 wrote to memory of 1388	4124	WindowsLibrary.exe	105

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe
"C:\Users\Admin\AppData\Local\Temp\be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:556
- C:\Windows\SYSTEM32\SCHtAsKs.EXe
  "SCHtAsKs.EXe" /create /tn WindowUpdates1641037013 /tr "C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe" /st 01:57 /du 9999:59 /sc daily /ri 1
  2⤵
  - Creates scheduled task(s)
  PID:1076
- C:\Windows\SYSTEM32\SCHtAsKs.EXe
  "SCHtAsKs.EXe" /create /tn WindowUpdates1641037013 /tr "C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe" /st 01:57 /du 9999:59 /sc daily /ri 1
  2⤵
  - Creates scheduled task(s)
  PID:2068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1120

C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
1⤵
- Suspicious use of SetThreadContext
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\system32\SCHtAsKs.EXe
  "SCHtAsKs.EXe" /create /tn WindowUpdates1641037013 /tr "C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe" /st 01:58 /du 9999:59 /sc daily /ri 1
  2⤵
  - Creates scheduled task(s)
  PID:2848
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3900

C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
1⤵
- Suspicious use of SetThreadContext
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Windows\system32\SCHtAsKs.EXe
  "SCHtAsKs.EXe" /create /tn WindowUpdates1641037013 /tr "C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe" /st 01:59 /du 9999:59 /sc daily /ri 1
  2⤵
  - Creates scheduled task(s)
  PID:4736
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1108

C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Windows\system32\SCHtAsKs.EXe
  "SCHtAsKs.EXe" /create /tn WindowUpdates1641037013 /tr "C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe" /st 02:00 /du 9999:59 /sc daily /ri 1
  2⤵
  - Creates scheduled task(s)
  PID:1388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WindowsLibrary.exe.log

Filesize
1KB

MD5
83efd99cf33380fb1979edf398c40bba

SHA1
aba16dacba482997e627c9b57e66e1029cdbf89b

SHA256
f98c3850c4237454265e0c8f29d2c1df6d843196b2fe3b4801d0c01627fba568

SHA512
3fdb4487509628c143b92aa4a48344cce699f2fd1d30fbe9eae32ea932694ff4ca0425e42b1649749cce442a3c63a14c0d07651ae912f406ffc6b46b28c2b127

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftwindowsUpdates\WindowsLibrary.exe

Filesize
474KB

MD5
ec3e0e37a0706e727186ef4a1d338b48

SHA1
549d90919104da57c9ed2e6cbc3d4a654b32162b

SHA256
be9880ef9ccc6b51f6e22e21884bf7092da435c96a072bd9e9515eb88b7c6bd5

SHA512
6010946af214b0015b899f1fb1086a66a0e5d0851a35256f3294ea92e3557912cd129569220c69a4f593db37ad9027c3c7c297f904965ea9cc2e8af61a7a0862

Download Submit
memory/556-0-0x00000000004C0000-0x000000000053A000-memory.dmp

Filesize
488KB

Download
memory/556-2-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/556-7-0x000000001B370000-0x000000001B380000-memory.dmp

Filesize
64KB

Download
memory/556-6-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/556-8-0x0000000000D00000-0x0000000000D0A000-memory.dmp

Filesize
40KB

Download
memory/556-10-0x000000001B370000-0x000000001B380000-memory.dmp

Filesize
64KB

Download
memory/556-12-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/1696-5-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/1696-9-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/1696-15-0x00007FFFD8E40000-0x00007FFFD9901000-memory.dmp

Filesize
10.8MB

Download
memory/3900-62-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-66-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-17-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-20-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-22-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-26-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-28-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-34-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-40-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-48-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-16-0x0000000004EA0000-0x0000000004F7C000-memory.dmp

Filesize
880KB

Download
memory/3900-76-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-78-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-74-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-72-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-70-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-68-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-18-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-64-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-60-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-58-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-56-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-54-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-52-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-50-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-46-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-44-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-42-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-38-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-36-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-32-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-30-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-24-0x0000000004EA0000-0x0000000004F76000-memory.dmp

Filesize
856KB

Download
memory/3900-13-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/3900-6263-0x0000000004F80000-0x0000000004FE6000-memory.dmp

Filesize
408KB

Download