tofsee | 71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
05-05-2024 01:11

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General

Target

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
Size

2.0MB
MD5

b5829ea81cde8f48ba1190e20e6bb15d
SHA1

51fbb15275360bbf2a866f339045527e941e1a85
SHA256

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451
SHA512

d84e43e6cf342d0e7696be6b1cbcf42dce5d1efe518f4949faa8841ee398a25a63a6e41440eb10ba0d276454ba73752c9ffb17eddbfd0813a636646663e26b4a
SSDEEP

49152:aaXI0V7PoU9lHrHmvtiLGMIqCGLhRSCquJnm:3Y0V7gU9l2tiLGVGLhRvquJnm

Score

10^/10

tofsee zgrat evasion execution persistence rat spyware trojan

Malware Config

Extracted

Family

tofsee

vanaheim.cn

jotunheim.name

Signatures

Detect ZGRat V1 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2780-36-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-34-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-49-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-51-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/2780-50-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2292 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

hqguvjye.exe

pid process

2128 hqguvjye.exe
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2292	netsh.exe

pid	process
2128	hqguvjye.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exeAddInProcess32.exe

description	pid	process	target process
PID 1712 set thread context of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 set thread context of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 2644 set thread context of 2780	2644	AddInProcess32.exe	InstallUtil.exe

Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2748 sc.exe
2892 sc.exe
1540 sc.exe

pid	process
2748	sc.exe
2892	sc.exe
1540	sc.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exeAddInProcess32.exeInstallUtil.exe

pid	process
1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
2644	AddInProcess32.exe
2644	AddInProcess32.exe
2780	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exeAddInProcess32.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
Token: SeDebugPrivilege	2644	AddInProcess32.exe
Token: SeDebugPrivilege	2780	InstallUtil.exe
Token: SeBackupPrivilege	2780	InstallUtil.exe
Token: SeSecurityPrivilege	2780	InstallUtil.exe
Token: SeSecurityPrivilege	2780	InstallUtil.exe
Token: SeSecurityPrivilege	2780	InstallUtil.exe
Token: SeSecurityPrivilege	2780	InstallUtil.exe

Suspicious use of WriteProcessMemory 55 IoCs

Processes:

71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exeAddInProcess32.exeAddInProcess32.exe

description	pid	process	target process
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2644	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 1712 wrote to memory of 2512	1712	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	AddInProcess32.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2644 wrote to memory of 2780	2644	AddInProcess32.exe	InstallUtil.exe
PID 2512 wrote to memory of 1480	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1480	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1480	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1480	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1656	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1656	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1656	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1656	2512	AddInProcess32.exe	cmd.exe
PID 2512 wrote to memory of 1540	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 1540	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 1540	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 1540	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2892	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2892	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2892	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2892	2512	AddInProcess32.exe	sc.exe
PID 2512 wrote to memory of 2292	2512	AddInProcess32.exe	netsh.exe
PID 2512 wrote to memory of 2292	2512	AddInProcess32.exe	netsh.exe
PID 2512 wrote to memory of 2292	2512	AddInProcess32.exe	netsh.exe
PID 2512 wrote to memory of 2292	2512	AddInProcess32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
"C:\Users\Admin\AppData\Local\Temp\71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\thosqeso\
    3⤵
    PID:1480
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hqguvjye.exe" C:\Windows\SysWOW64\thosqeso\
    3⤵
    PID:1656
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" create thosqeso binPath= "C:\Windows\SysWOW64\thosqeso\hqguvjye.exe /d\"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe\"" type= own start= auto DisplayName= "wifi support"
    3⤵
    - Launches sc.exe
    PID:1540
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" description thosqeso "wifi internet conection"
    3⤵
    - Launches sc.exe
    PID:2748
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" start thosqeso
    3⤵
    - Launches sc.exe
    PID:2892
- - C:\Windows\SysWOW64\netsh.exe
    "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
    3⤵
    - Modifies Windows Firewall
    PID:2292

C:\Windows\SysWOW64\thosqeso\hqguvjye.exe
C:\Windows\SysWOW64\thosqeso\hqguvjye.exe /d"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
1⤵
- Executes dropped EXE
PID:2128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

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\hqguvjye.exe

Filesize
11.2MB

MD5
96274e3857e13ee25cf27b45b33be246

SHA1
7d6ca915f8d5c61e73e90159f2e43f8c80a00551

SHA256
dbc018ff5aa676aa55f0c6ed3fa86e850c2c85f1e051650b413d35fe307e0842

SHA512
06db6c64581014f901a0acf8f3f0822ce43bd93c00b342f37319ef0e30fb1be520804fca05591215b6775581fd5d0b97beb526227032492ea7c636b8a4e8ed12

Download Submit
memory/1712-16-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/1712-45-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/1712-3-0x00000000020F0000-0x0000000002134000-memory.dmp

Filesize
272KB

Download
memory/1712-4-0x0000000002040000-0x000000000205A000-memory.dmp

Filesize
104KB

Download
memory/1712-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/1712-1-0x0000000000A30000-0x0000000000C32000-memory.dmp

Filesize
2.0MB

Download
memory/1712-2-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/1712-15-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/1712-5-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download
memory/2512-43-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-44-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-24-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-26-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-52-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-20-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-18-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-19-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-17-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-21-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-11-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-40-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-6-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-8-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-9-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2644-41-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-42-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-30-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-32-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-34-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-36-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-49-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-51-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-50-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2780-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download