zgrat | d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f

Resubmissions

27-02-2024 15:25

240227-stkjgacg5s 10

27-02-2024 15:21

240227-srp16scc78 10

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-02-2024 15:21

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General

Target

a97ccd364ed034769bd7a0e41d823ebf.exe
Size

754KB
MD5

a97ccd364ed034769bd7a0e41d823ebf
SHA1

ca4e9380a6ac5fe37d204cc055fb7f63cf764383
SHA256

d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f
SHA512

b9c716b17d105a97cd161f9585e3b69a9b4b40091bb07c5e0cef79a257bb26a5076a58a649b4db6bb0a67990d980292df657b4187ff348a66748355a18699770
SSDEEP

12288:Nte7/9xRNdnCGjIz8L4frvaRHELXq24z3P8cUdKFoUU5Czd0/FU1F3:uf9nXIoL4frSELq1LP84dU5CJ0/w

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/4100-49-0x0000000007B30000-0x0000000007B98000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-50-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-51-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-53-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-55-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-57-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-59-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-61-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-63-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-65-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-67-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-69-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-71-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-73-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-75-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-77-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-79-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-81-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-83-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-85-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-87-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-89-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-91-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-93-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-95-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-97-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-99-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-101-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-103-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-105-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-107-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-109-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-111-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1
behavioral2/memory/4100-113-0x0000000007B30000-0x0000000007B93000-memory.dmp	family_zgrat_v1

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	a97ccd364ed034769bd7a0e41d823ebf.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-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrom = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chrome\\chrom.exe\""	a97ccd364ed034769bd7a0e41d823ebf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4172	powershell.exe
4172	powershell.exe
1660	powershell.exe
1660	powershell.exe
1372	powershell.exe
1372	powershell.exe
5440	powershell.exe
5440	powershell.exe
6052	powershell.exe
6052	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	1660	powershell.exe
Token: SeDebugPrivilege	4100	a97ccd364ed034769bd7a0e41d823ebf.exe
Token: SeDebugPrivilege	1372	powershell.exe
Token: SeDebugPrivilege	5440	powershell.exe
Token: SeDebugPrivilege	6052	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 4172	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 4100 wrote to memory of 4172	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 4100 wrote to memory of 4172	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 4100 wrote to memory of 1660	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	94
PID 4100 wrote to memory of 1660	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	94
PID 4100 wrote to memory of 1660	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	94
PID 4100 wrote to memory of 1372	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	99
PID 4100 wrote to memory of 1372	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	99
PID 4100 wrote to memory of 1372	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	99
PID 4100 wrote to memory of 5440	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 4100 wrote to memory of 5440	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 4100 wrote to memory of 5440	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 4100 wrote to memory of 6052	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	104
PID 4100 wrote to memory of 6052	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	104
PID 4100 wrote to memory of 6052	4100	a97ccd364ed034769bd7a0e41d823ebf.exe	104

C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
"C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4172
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1660
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1372
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5440
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:6052

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
16KB

MD5
993d9fdc04c5a11dcd3afcd53c701340

SHA1
9689494b9deee23622e68048f13e389138a4c5b6

SHA256
0b857cd118b66bc7bc9b6b9fc77ae0b4cd25e00f0dc604b00617c64ff3eeeca6

SHA512
07e92465df2e44f1027bcd0b473dc8f5453a19539620aeff187e2f51b805de5ac69fd097cfcae287151d61cadbb09d3e8dbc09d526418bc371c1421d43fe62bc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
e13458e23f2b06d020ee2efe5c9b3de0

SHA1
8880eb33b7a2a51e65ceb07ea06b2639fb817483

SHA256
8dd8c4dc9c125f9838c28953ec6473a424a81b8c39098892b57394ea75355503

SHA512
deb9fef17745af577d05dab920d2cf196e561a394fc8be0e2a4aad81cac74f26c30207fc5d0c68b38218d5488754bfafb226fa9343fa5345020121b453172639

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
16KB

MD5
5bd91059e14569950712bae728c484fb

SHA1
c935db63a1062dfdc22672a9caff2280bc7c2b76

SHA256
f0e27f30673a07aaffb8ec67498a9d4c18769e533e515e80e4d1597aa220a5f6

SHA512
1950f928efad7bbf42b7af936a814982059cdf3691f65d58ba0d4a6e7d006306edfbe84300d09a747a2b0b39367ddfd6ad95afb6e08319c62ad38b70dfb912be

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
bdf7a60b6144cc44dbb1c63f2a0c2dc1

SHA1
7d018bc6ab0e3fd27e7eef4a69f01acf92ad35f5

SHA256
2905c780e5a48e72eb3452df36c76855863550c56bdd8fc318ee8b44fbd4af71

SHA512
15f5d76b319e173598a8537af2eeb89e1f244b2a2d184dbcfa6d7b2ae4d987aaf21a386a5151913576e4c1bb9dff9a9d74610bec4eb607f76c570c7727a21794

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_drybf1k3.t2w.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1372-4030-0x0000000006AD0000-0x0000000006AF2000-memory.dmp

Filesize
136KB

Download
memory/1372-2075-0x0000000005C50000-0x0000000005C9C000-memory.dmp

Filesize
304KB

Download
memory/1372-4029-0x0000000006DF0000-0x0000000006E86000-memory.dmp

Filesize
600KB

Download
memory/1372-2051-0x0000000005540000-0x0000000005894000-memory.dmp

Filesize
3.3MB

Download
memory/1372-2041-0x00000000045C0000-0x00000000045D0000-memory.dmp

Filesize
64KB

Download
memory/1372-2039-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/1372-4032-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/1660-44-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/1660-30-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/1660-41-0x00000000059D0000-0x0000000005D24000-memory.dmp

Filesize
3.3MB

Download
memory/1660-31-0x0000000002770000-0x0000000002780000-memory.dmp

Filesize
64KB

Download
memory/4100-109-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-83-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-1-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4100-2-0x0000000005CB0000-0x0000000006254000-memory.dmp

Filesize
5.6MB

Download
memory/4100-3-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/4100-4-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/4100-5-0x0000000005790000-0x000000000579A000-memory.dmp

Filesize
40KB

Download
memory/4100-113-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-111-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-0-0x0000000000CC0000-0x0000000000D82000-memory.dmp

Filesize
776KB

Download
memory/4100-45-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4100-46-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/4100-48-0x0000000007610000-0x00000000076B2000-memory.dmp

Filesize
648KB

Download
memory/4100-49-0x0000000007B30000-0x0000000007B98000-memory.dmp

Filesize
416KB

Download
memory/4100-50-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-51-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-53-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-55-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-57-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-59-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-61-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-63-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-65-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-67-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-69-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-71-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-73-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-75-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-77-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-79-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-81-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-107-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-85-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-87-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-89-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-91-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-93-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-95-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-97-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-99-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-101-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-103-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4100-105-0x0000000007B30000-0x0000000007B93000-memory.dmp

Filesize
396KB

Download
memory/4172-24-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

Filesize
120KB

Download
memory/4172-10-0x0000000004EE0000-0x0000000005508000-memory.dmp

Filesize
6.2MB

Download
memory/4172-25-0x0000000005E40000-0x0000000005E8C000-memory.dmp

Filesize
304KB

Download
memory/4172-26-0x0000000007450000-0x0000000007ACA000-memory.dmp

Filesize
6.5MB

Download
memory/4172-29-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4172-9-0x00000000024E0000-0x00000000024F0000-memory.dmp

Filesize
64KB

Download
memory/4172-8-0x00000000024E0000-0x00000000024F0000-memory.dmp

Filesize
64KB

Download
memory/4172-7-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4172-6-0x00000000024F0000-0x0000000002526000-memory.dmp

Filesize
216KB

Download
memory/4172-23-0x0000000005920000-0x0000000005C74000-memory.dmp

Filesize
3.3MB

Download
memory/4172-12-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/4172-11-0x0000000004E40000-0x0000000004E62000-memory.dmp

Filesize
136KB

Download
memory/4172-18-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/4172-27-0x00000000062E0000-0x00000000062FA000-memory.dmp

Filesize
104KB

Download
memory/5440-4068-0x0000000006290000-0x00000000065E4000-memory.dmp

Filesize
3.3MB

Download
memory/5440-4044-0x0000000005170000-0x0000000005180000-memory.dmp

Filesize
64KB

Download
memory/5440-6030-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5440-4041-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/6052-6034-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/6052-6036-0x0000000002E10000-0x0000000002E20000-memory.dmp

Filesize
64KB

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memory/6052-6038-0x0000000002E10000-0x0000000002E20000-memory.dmp

Filesize
64KB

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