tofsee | 2c581e64c468ce51955e2b264a804c0adf973ad3c2c56daeafdf83e4187f393c

Analysis

max time kernel
134s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
06/05/2024, 01:48

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General

Target
71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
Size 2.0MB
Sample240506-b8cczagb29
SHA256 71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451
MD5 b5829ea81cde8f48ba1190e20e6bb15d
SHA1 51fbb15275360bbf2a866f339045527e941e1a85
SHA512 d84e43e6cf342d0e7696be6b1cbcf42dce5d1efe518f4949faa8841ee398a25a63a6e41440eb10ba0d276454ba73752c9ffb17eddbfd0813a636646663e26b4a
SSDEEP 49152:aaXI0V7PoU9lHrHmvtiLGMIqCGLhRSCquJnm:3Y0V7gU9l2tiLGVGLhRvquJnm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee zgrat evasion execution persistence rat spyware trojan

Malware Config

Extracted

Family

tofsee

vanaheim.cn
jotunheim.name

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral2/memory/2512-27-0x0000000000400000-0x0000000000484000-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

pid	Process
3080	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	iaffmeyc.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 216 set thread context of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 set thread context of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 1964 set thread context of 2512	1964	AddInProcess32.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4084	sc.exe
3548	sc.exe
1996	sc.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
1964	AddInProcess32.exe
216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
1964	AddInProcess32.exe
2512	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
Token: SeDebugPrivilege	1964	AddInProcess32.exe
Token: SeDebugPrivilege	2512	InstallUtil.exe
Token: SeBackupPrivilege	2512	InstallUtil.exe
Token: SeSecurityPrivilege	2512	InstallUtil.exe
Token: SeSecurityPrivilege	2512	InstallUtil.exe
Token: SeSecurityPrivilege	2512	InstallUtil.exe
Token: SeSecurityPrivilege	2512	InstallUtil.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 1964	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	96
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 2980	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	99
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 216 wrote to memory of 4848	216	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	100
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 1964 wrote to memory of 2512	1964	AddInProcess32.exe	101
PID 4848 wrote to memory of 3296	4848	AddInProcess32.exe	107
PID 4848 wrote to memory of 3296	4848	AddInProcess32.exe	107
PID 4848 wrote to memory of 3296	4848	AddInProcess32.exe	107
PID 4848 wrote to memory of 2076	4848	AddInProcess32.exe	109
PID 4848 wrote to memory of 2076	4848	AddInProcess32.exe	109
PID 4848 wrote to memory of 2076	4848	AddInProcess32.exe	109
PID 4848 wrote to memory of 4084	4848	AddInProcess32.exe	111
PID 4848 wrote to memory of 4084	4848	AddInProcess32.exe	111
PID 4848 wrote to memory of 4084	4848	AddInProcess32.exe	111
PID 4848 wrote to memory of 3548	4848	AddInProcess32.exe	114
PID 4848 wrote to memory of 3548	4848	AddInProcess32.exe	114
PID 4848 wrote to memory of 3548	4848	AddInProcess32.exe	114
PID 4848 wrote to memory of 1996	4848	AddInProcess32.exe	116
PID 4848 wrote to memory of 1996	4848	AddInProcess32.exe	116
PID 4848 wrote to memory of 1996	4848	AddInProcess32.exe	116
PID 4848 wrote to memory of 3080	4848	AddInProcess32.exe	119
PID 4848 wrote to memory of 3080	4848	AddInProcess32.exe	119
PID 4848 wrote to memory of 3080	4848	AddInProcess32.exe	119

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:216
- 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:1964
- - 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:2512
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:2980
- 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:4848
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mfkosshg\
    3⤵
    PID:3296
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iaffmeyc.exe" C:\Windows\SysWOW64\mfkosshg\
    3⤵
    PID:2076
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" create mfkosshg binPath= "C:\Windows\SysWOW64\mfkosshg\iaffmeyc.exe /d\"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe\"" type= own start= auto DisplayName= "wifi support"
    3⤵
    - Launches sc.exe
    PID:4084
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" description mfkosshg "wifi internet conection"
    3⤵
    - Launches sc.exe
    PID:3548
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" start mfkosshg
    3⤵
    - Launches sc.exe
    PID:1996
- - 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:3080

C:\Windows\SysWOW64\mfkosshg\iaffmeyc.exe
C:\Windows\SysWOW64\mfkosshg\iaffmeyc.exe /d"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
1⤵
- Executes dropped EXE
PID:2676

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

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Downloads

iaffmeyc.exe

Path C:\Users\Admin\AppData\Local\Temp\iaffmeyc.exe
Size 14.9MB
SHA256 94887828952ce08e3d5c749dee4206b775f734a23404fd59b47821bd87042375
MD5 bdfbf7fda5d7c51d784a5bf06a385ace
SHA1 6e6bd7168c6b9c1963c274275fc37985aa92c69a
SHA512 c48d8209f58ce9031e0bae96e44b21b22ab8ae3fa7f2bb9e2c91bda0387735fe61b5f078147c1e35743f3c55f302adedaa1336fcafb86664659bb3e607678749
SSDEEP 384:Sc3JOvwWj8Gpw0A67dOpRipKJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+TsPZ1:S4JU8g17dG6Iq8XMnV
MD5 SHA1 SHA512 SSDEEP

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memory/216-18-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/216-2-0x0000000005DE0000-0x0000000006384000-memory.dmp

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memory/216-3-0x00000000058D0000-0x0000000005962000-memory.dmp

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memory/216-4-0x0000000005970000-0x0000000005A0C000-memory.dmp

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memory/216-5-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/216-6-0x0000000006750000-0x0000000006794000-memory.dmp

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memory/216-7-0x0000000006A10000-0x0000000006A1A000-memory.dmp

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memory/216-8-0x00000000076F0000-0x000000000770A000-memory.dmp

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memory/216-9-0x0000000007720000-0x0000000007726000-memory.dmp

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memory/216-10-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

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memory/216-11-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/216-1-0x0000000000C60000-0x0000000000E62000-memory.dmp

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memory/216-24-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/216-14-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/216-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

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memory/1964-16-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-15-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-17-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-19-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-20-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-12-0x0000000000400000-0x0000000000538000-memory.dmp

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memory/1964-29-0x0000000074C60000-0x0000000075410000-memory.dmp

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memory/1964-13-0x0000000000400000-0x0000000000538000-memory.dmp

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memory/2512-35-0x00000000083A0000-0x00000000083EC000-memory.dmp

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memory/2512-31-0x0000000008750000-0x0000000008D68000-memory.dmp

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memory/2512-32-0x0000000008290000-0x000000000839A000-memory.dmp

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memory/2512-33-0x00000000081D0000-0x00000000081E2000-memory.dmp

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memory/2512-34-0x0000000008230000-0x000000000826C000-memory.dmp

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memory/2512-27-0x0000000000400000-0x0000000000484000-memory.dmp

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memory/2512-36-0x00000000084B0000-0x0000000008516000-memory.dmp

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memory/2512-37-0x0000000008DF0000-0x0000000008E66000-memory.dmp

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memory/2512-38-0x0000000008DB0000-0x0000000008DCE000-memory.dmp

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memory/2512-40-0x000000000ACE0000-0x000000000B20C000-memory.dmp

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memory/2512-39-0x000000000A3E0000-0x000000000A5A2000-memory.dmp

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memory/4848-23-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4848-21-0x0000000000400000-0x0000000000415000-memory.dmp

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