zgrat | 57e1f6b17381fa0659b19afdfa944a11205caae6556006f00bae5f6e39cb15d6

General

Target

a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13.exe
Size

628KB
MD5

1173a1f0469d241b02c1d57dc29cdf4d
SHA1

b789fd20e546ce3da045f30ae4ca5d02f260cc68
SHA256

a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13
SHA512

ca7fa41e3fe0812231ffdaad853534327bbad987c31b7431debc17a2ee042fab1339d01d8a1ba5cc054248e4276337bf3cf770a6862fc001f36bc50af1934498
SSDEEP

12288:i8VYM4g/lRdZYbcyqeI9ZPH7H7sxIhDJsCeuR8mmTKfut:RB3RvGoJHEkNsPuKmmT

Score

10^/10

zgrat rat

Malware Config

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral1/memory/2956-3-0x00000000025F0000-0x00000000026F0000-memory.dmp	family_zgrat_v1

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

Executes dropped EXE 1 IoCs

pid	Process
2496	PermissionType.exe

Loads dropped DLL 1 IoCs

pid	Process
2532	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 2068	2496	PermissionType.exe	36

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2632	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2956	a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13.exe
Token: SeDebugPrivilege	2632	powershell.exe
Token: SeDebugPrivilege	2496	PermissionType.exe
Token: SeDebugPrivilege	2068	AddInUtil.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2632	3056	taskeng.exe	30
PID 3056 wrote to memory of 2632	3056	taskeng.exe	30
PID 3056 wrote to memory of 2632	3056	taskeng.exe	30
PID 2532 wrote to memory of 2496	2532	taskeng.exe	35
PID 2532 wrote to memory of 2496	2532	taskeng.exe	35
PID 2532 wrote to memory of 2496	2532	taskeng.exe	35
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36
PID 2496 wrote to memory of 2068	2496	PermissionType.exe	36

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\a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13.exe
"C:\Users\Admin\AppData\Local\Temp\a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2956

C:\Windows\system32\taskeng.exe
taskeng.exe {D64189EB-246E-4A47-A5A3-B5DB0FD785DA} S-1-5-21-2180306848-1874213455-4093218721-1000:XEBBURHY\Admin:S4U:
1⤵
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAA==
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632

C:\Windows\system32\taskeng.exe
taskeng.exe {2B59C90B-D64E-48D9-AF0D-F8574EC9006B} S-1-5-21-2180306848-1874213455-4093218721-1000:XEBBURHY\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Roaming\Hash\PermissionType.exe
  C:\Users\Admin\AppData\Roaming\Hash\PermissionType.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\AddInUtil.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Hash\PermissionType.exe

Filesize
628KB

MD5
1173a1f0469d241b02c1d57dc29cdf4d

SHA1
b789fd20e546ce3da045f30ae4ca5d02f260cc68

SHA256
a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13

SHA512
ca7fa41e3fe0812231ffdaad853534327bbad987c31b7431debc17a2ee042fab1339d01d8a1ba5cc054248e4276337bf3cf770a6862fc001f36bc50af1934498

Download Submit
C:\Users\Admin\AppData\Roaming\Hash\PermissionType.exe

Filesize
628KB

MD5
1173a1f0469d241b02c1d57dc29cdf4d

SHA1
b789fd20e546ce3da045f30ae4ca5d02f260cc68

SHA256
a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13

SHA512
ca7fa41e3fe0812231ffdaad853534327bbad987c31b7431debc17a2ee042fab1339d01d8a1ba5cc054248e4276337bf3cf770a6862fc001f36bc50af1934498

Download Submit
\Users\Admin\AppData\Roaming\Hash\PermissionType.exe

Filesize
628KB

MD5
1173a1f0469d241b02c1d57dc29cdf4d

SHA1
b789fd20e546ce3da045f30ae4ca5d02f260cc68

SHA256
a22f38c26dc96fa285efd4c0732a22e9bb81b105ad65c75c609a478dd551ac13

SHA512
ca7fa41e3fe0812231ffdaad853534327bbad987c31b7431debc17a2ee042fab1339d01d8a1ba5cc054248e4276337bf3cf770a6862fc001f36bc50af1934498

Download Submit
memory/2068-31-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/2068-34-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/2068-42-0x000007FEF5130000-0x000007FEF5B1C000-memory.dmp

Filesize
9.9MB

Download
memory/2068-40-0x000000001AF50000-0x000000001AFD0000-memory.dmp

Filesize
512KB

Download
memory/2068-39-0x000007FEF5130000-0x000007FEF5B1C000-memory.dmp

Filesize
9.9MB

Download
memory/2068-32-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

Filesize
4KB

Download
memory/2068-30-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/2068-28-0x0000000140000000-0x00000001400A2000-memory.dmp

Filesize
648KB

Download
memory/2068-43-0x000000001AF50000-0x000000001AFD0000-memory.dmp

Filesize
512KB

Download
memory/2496-35-0x0000000000640000-0x00000000006C0000-memory.dmp

Filesize
512KB

Download
memory/2496-26-0x000000013F9F0000-0x000000013FA92000-memory.dmp

Filesize
648KB

Download
memory/2496-27-0x0000000000640000-0x00000000006C0000-memory.dmp

Filesize
512KB

Download
memory/2496-25-0x000007FEF5130000-0x000007FEF5B1C000-memory.dmp

Filesize
9.9MB

Download
memory/2496-41-0x0000000000640000-0x00000000006C0000-memory.dmp

Filesize
512KB

Download
memory/2496-38-0x000007FEF5130000-0x000007FEF5B1C000-memory.dmp

Filesize
9.9MB

Download
memory/2496-29-0x0000000000640000-0x00000000006C0000-memory.dmp

Filesize
512KB

Download
memory/2632-15-0x0000000001340000-0x0000000001348000-memory.dmp

Filesize
32KB

Download
memory/2632-11-0x000007FEEED20000-0x000007FEEF6BD000-memory.dmp

Filesize
9.6MB

Download
memory/2632-17-0x000007FEEED20000-0x000007FEEF6BD000-memory.dmp

Filesize
9.6MB

Download
memory/2632-14-0x0000000019C70000-0x0000000019F52000-memory.dmp

Filesize
2.9MB

Download
memory/2632-16-0x0000000000D60000-0x0000000000DE0000-memory.dmp

Filesize
512KB

Download
memory/2632-12-0x0000000000D60000-0x0000000000DE0000-memory.dmp

Filesize
512KB

Download
memory/2956-4-0x0000000000990000-0x00000000009E6000-memory.dmp

Filesize
344KB

Download
memory/2956-13-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/2956-20-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/2956-5-0x00000000022E0000-0x000000000232C000-memory.dmp

Filesize
304KB

Download
memory/2956-0-0x000000013FFF0000-0x0000000140092000-memory.dmp

Filesize
648KB

Download
memory/2956-6-0x00000000024F0000-0x0000000002544000-memory.dmp

Filesize
336KB

Download
memory/2956-2-0x0000000000560000-0x00000000005E0000-memory.dmp

Filesize
512KB

Download
memory/2956-1-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/2956-3-0x00000000025F0000-0x00000000026F0000-memory.dmp

Filesize
1024KB

Download

Analysis

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