zgrat | 377583a5e31d2b6953ea0955f149a2e9fe134ae420c3d91aab07adeeae728fcd

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/10/2024, 08:47

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General

Target

65.exe
Size

1.9MB
MD5

289d61c6e3b5f6592f6d246abf213b2a
SHA1

ba01cb12f4aa2f724d2ba31951fc10eb4fc9f186
SHA256

377583a5e31d2b6953ea0955f149a2e9fe134ae420c3d91aab07adeeae728fcd
SHA512

fb8eb1a50435af924e5003e6985724b27bdf3d2f496716e37d8a37ddc8fbf7eafca8c623ad2eb9473f16c799f278270e16416b9a8d63df2101d21414423f12a0
SSDEEP

49152:d7bdYAm4zKbdYAm4zSs5XbdYAm4zabdYAm4zK6c5UQ33W/T62Ty:ddrAdrZrdrwdrV4Uu3ue2G

Score

10^/10

zgrat discovery rat spyware stealer

Malware Config

Signatures

Detect ZGRat V2 5 IoCs

resource	yara_rule
behavioral1/memory/2804-36-0x0000000000400000-0x0000000000505000-memory.dmp	family_zgrat_v2
behavioral1/memory/2804-40-0x0000000000400000-0x0000000000505000-memory.dmp	family_zgrat_v2
behavioral1/memory/2804-38-0x0000000000400000-0x0000000000505000-memory.dmp	family_zgrat_v2
behavioral1/memory/2804-43-0x0000000000400000-0x0000000000500000-memory.dmp	family_zgrat_v2
behavioral1/memory/2804-45-0x00000000029D0000-0x0000000002A1C000-memory.dmp	family_zgrat_v2

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 2 IoCs

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

flow	ioc
5	ipinfo.io
6	ipinfo.io

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 2804	2372	65.exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 6 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	65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2776	timeout.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	regasm.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	regasm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2804	regasm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2372	65.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	regasm.exe
Token: SeIncreaseQuotaPrivilege	2796	WMIC.exe
Token: SeSecurityPrivilege	2796	WMIC.exe
Token: SeTakeOwnershipPrivilege	2796	WMIC.exe
Token: SeLoadDriverPrivilege	2796	WMIC.exe
Token: SeSystemProfilePrivilege	2796	WMIC.exe
Token: SeSystemtimePrivilege	2796	WMIC.exe
Token: SeProfSingleProcessPrivilege	2796	WMIC.exe
Token: SeIncBasePriorityPrivilege	2796	WMIC.exe
Token: SeCreatePagefilePrivilege	2796	WMIC.exe
Token: SeBackupPrivilege	2796	WMIC.exe
Token: SeRestorePrivilege	2796	WMIC.exe
Token: SeShutdownPrivilege	2796	WMIC.exe
Token: SeDebugPrivilege	2796	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2796	WMIC.exe
Token: SeRemoteShutdownPrivilege	2796	WMIC.exe
Token: SeUndockPrivilege	2796	WMIC.exe
Token: SeManageVolumePrivilege	2796	WMIC.exe
Token: 33	2796	WMIC.exe
Token: 34	2796	WMIC.exe
Token: 35	2796	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2796	WMIC.exe
Token: SeSecurityPrivilege	2796	WMIC.exe
Token: SeTakeOwnershipPrivilege	2796	WMIC.exe
Token: SeLoadDriverPrivilege	2796	WMIC.exe
Token: SeSystemProfilePrivilege	2796	WMIC.exe
Token: SeSystemtimePrivilege	2796	WMIC.exe
Token: SeProfSingleProcessPrivilege	2796	WMIC.exe
Token: SeIncBasePriorityPrivilege	2796	WMIC.exe
Token: SeCreatePagefilePrivilege	2796	WMIC.exe
Token: SeBackupPrivilege	2796	WMIC.exe
Token: SeRestorePrivilege	2796	WMIC.exe
Token: SeShutdownPrivilege	2796	WMIC.exe
Token: SeDebugPrivilege	2796	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2796	WMIC.exe
Token: SeRemoteShutdownPrivilege	2796	WMIC.exe
Token: SeUndockPrivilege	2796	WMIC.exe
Token: SeManageVolumePrivilege	2796	WMIC.exe
Token: 33	2796	WMIC.exe
Token: 34	2796	WMIC.exe
Token: 35	2796	WMIC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2372	65.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2372 wrote to memory of 2804	2372	65.exe	31
PID 2804 wrote to memory of 2764	2804	regasm.exe	32
PID 2804 wrote to memory of 2764	2804	regasm.exe	32
PID 2804 wrote to memory of 2764	2804	regasm.exe	32
PID 2804 wrote to memory of 2764	2804	regasm.exe	32
PID 2764 wrote to memory of 2796	2764	cmd.exe	34
PID 2764 wrote to memory of 2796	2764	cmd.exe	34
PID 2764 wrote to memory of 2796	2764	cmd.exe	34
PID 2764 wrote to memory of 2796	2764	cmd.exe	34
PID 2804 wrote to memory of 2152	2804	regasm.exe	35
PID 2804 wrote to memory of 2152	2804	regasm.exe	35
PID 2804 wrote to memory of 2152	2804	regasm.exe	35
PID 2804 wrote to memory of 2152	2804	regasm.exe	35
PID 2152 wrote to memory of 2776	2152	cmd.exe	37
PID 2152 wrote to memory of 2776	2152	cmd.exe	37
PID 2152 wrote to memory of 2776	2152	cmd.exe	37
PID 2152 wrote to memory of 2776	2152	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\65.exe
"C:\Users\Admin\AppData\Local\Temp\65.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /C wmic path win32_ComputerSystem get model
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2764
  - - C:\Windows\SysWOW64\Wbem\WMIC.exe
      wmic path win32_ComputerSystem get model
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2796
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C TIMEOUT /T 3 && DEL /f "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2152
  - - C:\Windows\SysWOW64\timeout.exe
      TIMEOUT /T 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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\Temp\CabA2E6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA6CF.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2372-41-0x0000000072940000-0x0000000072A93000-memory.dmp

Filesize
1.3MB

Download
memory/2372-9-0x0000000072940000-0x0000000072A93000-memory.dmp

Filesize
1.3MB

Download
memory/2372-25-0x0000000072940000-0x0000000072A93000-memory.dmp

Filesize
1.3MB

Download
memory/2372-29-0x0000000072940000-0x0000000072A93000-memory.dmp

Filesize
1.3MB

Download
memory/2372-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2372-7-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2372-8-0x000000007294A000-0x000000007294B000-memory.dmp

Filesize
4KB

Download
memory/2804-36-0x0000000000400000-0x0000000000505000-memory.dmp

Filesize
1.0MB

Download
memory/2804-40-0x0000000000400000-0x0000000000505000-memory.dmp

Filesize
1.0MB

Download
memory/2804-38-0x0000000000400000-0x0000000000505000-memory.dmp

Filesize
1.0MB

Download
memory/2804-43-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2804-44-0x0000000000E80000-0x0000000000F32000-memory.dmp

Filesize
712KB

Download
memory/2804-45-0x00000000029D0000-0x0000000002A1C000-memory.dmp

Filesize
304KB

Download