tofsee | 71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-05-2024 19:46

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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

resource	yara_rule
behavioral1/memory/2752-43-0x0000000000090000-0x0000000000114000-memory.dmp	family_zgrat_v1
behavioral1/memory/2752-41-0x0000000000090000-0x0000000000114000-memory.dmp	family_zgrat_v1
behavioral1/memory/1652-68-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/1652-71-0x0000000000400000-0x0000000000484000-memory.dmp	family_zgrat_v1
behavioral1/memory/1652-70-0x0000000000400000-0x0000000000484000-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
764	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1920	nwioytpf.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 2084 set thread context of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 set thread context of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2512 set thread context of 1652	2512	AddInProcess32.exe	33

Launches sc.exe 3 IoCs

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

pid	Process
2068	sc.exe
1972	sc.exe
1964	sc.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
2512	AddInProcess32.exe
2512	AddInProcess32.exe
2512	AddInProcess32.exe
2512	AddInProcess32.exe
1652	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe
Token: SeDebugPrivilege	2512	AddInProcess32.exe
Token: SeDebugPrivilege	1652	InstallUtil.exe
Token: SeBackupPrivilege	1652	InstallUtil.exe
Token: SeSecurityPrivilege	1652	InstallUtil.exe
Token: SeSecurityPrivilege	1652	InstallUtil.exe
Token: SeSecurityPrivilege	1652	InstallUtil.exe
Token: SeSecurityPrivilege	1652	InstallUtil.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2512	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	28
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2084 wrote to memory of 2960	2084	71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451.exe	29
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 2752	2512	AddInProcess32.exe	30
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2512 wrote to memory of 1652	2512	AddInProcess32.exe	33
PID 2960 wrote to memory of 2036	2960	AddInProcess32.exe	34
PID 2960 wrote to memory of 2036	2960	AddInProcess32.exe	34
PID 2960 wrote to memory of 2036	2960	AddInProcess32.exe	34
PID 2960 wrote to memory of 2036	2960	AddInProcess32.exe	34
PID 2960 wrote to memory of 1132	2960	AddInProcess32.exe	36
PID 2960 wrote to memory of 1132	2960	AddInProcess32.exe	36
PID 2960 wrote to memory of 1132	2960	AddInProcess32.exe	36
PID 2960 wrote to memory of 1132	2960	AddInProcess32.exe	36
PID 2960 wrote to memory of 2068	2960	AddInProcess32.exe	38
PID 2960 wrote to memory of 2068	2960	AddInProcess32.exe	38
PID 2960 wrote to memory of 2068	2960	AddInProcess32.exe	38
PID 2960 wrote to memory of 2068	2960	AddInProcess32.exe	38
PID 2960 wrote to memory of 1972	2960	AddInProcess32.exe	40
PID 2960 wrote to memory of 1972	2960	AddInProcess32.exe	40
PID 2960 wrote to memory of 1972	2960	AddInProcess32.exe	40
PID 2960 wrote to memory of 1972	2960	AddInProcess32.exe	40
PID 2960 wrote to memory of 1964	2960	AddInProcess32.exe	42
PID 2960 wrote to memory of 1964	2960	AddInProcess32.exe	42
PID 2960 wrote to memory of 1964	2960	AddInProcess32.exe	42
PID 2960 wrote to memory of 1964	2960	AddInProcess32.exe	42
PID 2960 wrote to memory of 764	2960	AddInProcess32.exe	45

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:2084
- 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:2512
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:2752
- - 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:1652
- 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:2960
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xidmaein\
    3⤵
    PID:2036
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nwioytpf.exe" C:\Windows\SysWOW64\xidmaein\
    3⤵
    PID:1132
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" create xidmaein binPath= "C:\Windows\SysWOW64\xidmaein\nwioytpf.exe /d\"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe\"" type= own start= auto DisplayName= "wifi support"
    3⤵
    - Launches sc.exe
    PID:2068
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" description xidmaein "wifi internet conection"
    3⤵
    - Launches sc.exe
    PID:1972
- - C:\Windows\SysWOW64\sc.exe
    "C:\Windows\System32\sc.exe" start xidmaein
    3⤵
    - Launches sc.exe
    PID:1964
- - 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:764

C:\Windows\SysWOW64\xidmaein\nwioytpf.exe
C:\Windows\SysWOW64\xidmaein\nwioytpf.exe /d"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
1⤵
- Executes dropped EXE
PID:1920

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\nwioytpf.exe

Filesize
12.6MB

MD5
5b9d7e955a321637d81f5e48428960ad

SHA1
9f9ab49547477a4f43f79b3e3a30afbd2bb79441

SHA256
febb4cb38b4aeb0e7b77dcc650d0eab539c1c01596c0078bb693a5b597d409d6

SHA512
d5ed445fafdd9057e1dd982cb0dd043e2b10177e2c8da09efd81085033acfc128b3c6da1e5087ce5804cc5a0ad4f1fb5e3da69bbbbde303b25816f1673ea4ab3

Download Submit
memory/1652-70-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1652-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1652-71-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1652-68-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2084-2-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-3-0x0000000004690000-0x00000000046D4000-memory.dmp

Filesize
272KB

Download
memory/2084-4-0x0000000000610000-0x000000000062A000-memory.dmp

Filesize
104KB

Download
memory/2084-5-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2084-1-0x00000000003F0000-0x00000000005F2000-memory.dmp

Filesize
2.0MB

Download
memory/2084-62-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-16-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/2084-17-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/2512-57-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-20-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-23-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-24-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-69-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-6-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-8-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-22-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2512-10-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-12-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2512-46-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-58-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-18-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/2752-37-0x0000000000090000-0x0000000000114000-memory.dmp

Filesize
528KB

Download
memory/2752-39-0x0000000000090000-0x0000000000114000-memory.dmp

Filesize
528KB

Download
memory/2752-41-0x0000000000090000-0x0000000000114000-memory.dmp

Filesize
528KB

Download
memory/2752-43-0x0000000000090000-0x0000000000114000-memory.dmp

Filesize
528KB

Download
memory/2752-44-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-29-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-61-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-63-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-59-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-67-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-31-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-33-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2960-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download