tofsee | 71d1f22830e0f40506171cda626891b4f954ec22f4a4cd0045b37f8d6c404451

Analysis

max time kernel
134s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 18:45

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General

Target

sus_file.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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/380-32-0x0000000000400000-0x0000000000484000-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

1672 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

jeorfqqy.exe

pid process

2652 jeorfqqy.exe
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
1672	netsh.exe

pid	process
2652	jeorfqqy.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

sus_file.exeAddInProcess32.exe

description	pid	process	target process
PID 4244 set thread context of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 set thread context of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 1928 set thread context of 380	1928	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

3948 sc.exe
2624 sc.exe
1924 sc.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

sus_file.exeAddInProcess32.exeInstallUtil.exe

pid process

4244 sus_file.exe
4244 sus_file.exe
4244 sus_file.exe
4244 sus_file.exe
1928 AddInProcess32.exe
1928 AddInProcess32.exe
380 InstallUtil.exe

pid	process
3948	sc.exe
2624	sc.exe
1924	sc.exe

pid	process
4244	sus_file.exe
4244	sus_file.exe
4244	sus_file.exe
4244	sus_file.exe
1928	AddInProcess32.exe
1928	AddInProcess32.exe
380	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

sus_file.exeAddInProcess32.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4244	sus_file.exe
Token: SeDebugPrivilege	1928	AddInProcess32.exe
Token: SeDebugPrivilege	380	InstallUtil.exe
Token: SeBackupPrivilege	380	InstallUtil.exe
Token: SeSecurityPrivilege	380	InstallUtil.exe
Token: SeSecurityPrivilege	380	InstallUtil.exe
Token: SeSecurityPrivilege	380	InstallUtil.exe
Token: SeSecurityPrivilege	380	InstallUtil.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

sus_file.exeAddInProcess32.exeAddInProcess32.exe

description	pid	process	target process
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4708	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 1928	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 4244 wrote to memory of 4756	4244	sus_file.exe	AddInProcess32.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 1928 wrote to memory of 380	1928	AddInProcess32.exe	InstallUtil.exe
PID 4756 wrote to memory of 1896	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 1896	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 1896	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 4628	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 4628	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 4628	4756	AddInProcess32.exe	cmd.exe
PID 4756 wrote to memory of 3948	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 3948	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 3948	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 2624	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 2624	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 2624	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 1924	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 1924	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 1924	4756	AddInProcess32.exe	sc.exe
PID 4756 wrote to memory of 1672	4756	AddInProcess32.exe	netsh.exe
PID 4756 wrote to memory of 1672	4756	AddInProcess32.exe	netsh.exe
PID 4756 wrote to memory of 1672	4756	AddInProcess32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\sus_file.exe
"C:\Users\Admin\AppData\Local\Temp\sus_file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
2⤵
PID:4708

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:1928

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:380

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:4756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gjsekfaf\
3⤵
PID:1896

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jeorfqqy.exe" C:\Windows\SysWOW64\gjsekfaf\
3⤵
PID:4628

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gjsekfaf binPath= "C:\Windows\SysWOW64\gjsekfaf\jeorfqqy.exe /d\"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe\"" type= own start= auto DisplayName= "wifi support"
3⤵
- Launches sc.exe
PID:3948

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gjsekfaf "wifi internet conection"
3⤵
- Launches sc.exe
PID:2624

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gjsekfaf
3⤵
- Launches sc.exe
PID:1924

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:1672

C:\Windows\SysWOW64\gjsekfaf\jeorfqqy.exe
C:\Windows\SysWOW64\gjsekfaf\jeorfqqy.exe /d"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
1⤵
- Executes dropped EXE
PID:2652

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\jeorfqqy.exe

Filesize
12.4MB

MD5
2fbedd2f69d48e0c5f34d88c0362f08c

SHA1
652c556b85c4825d46fc449370d18964143b83db

SHA256
b73409811e043c20243687a573c200bbe9b298806f49c73c63ab0dc397091717

SHA512
f90fbb3b9ddf9fd87a4d4d1653243a5b10206d8aea7cc4c9f3bd1f572ff5bf3cbf6723358553be9562274412b76c9f5b3536b668c34d288032865823bda26d02

Download Submit
memory/380-35-0x0000000008C90000-0x00000000092A8000-memory.dmp

Filesize
6.1MB

Download
memory/380-32-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/380-36-0x00000000087F0000-0x00000000088FA000-memory.dmp

Filesize
1.0MB

Download
memory/380-41-0x00000000093B0000-0x0000000009426000-memory.dmp

Filesize
472KB

Download
memory/380-40-0x0000000008A80000-0x0000000008AE6000-memory.dmp

Filesize
408KB

Download
memory/380-39-0x0000000008900000-0x000000000894C000-memory.dmp

Filesize
304KB

Download
memory/380-38-0x0000000008790000-0x00000000087CC000-memory.dmp

Filesize
240KB

Download
memory/380-37-0x0000000008730000-0x0000000008742000-memory.dmp

Filesize
72KB

Download
memory/380-42-0x0000000008C60000-0x0000000008C7E000-memory.dmp

Filesize
120KB

Download
memory/380-44-0x000000000AE30000-0x000000000B35C000-memory.dmp

Filesize
5.2MB

Download
memory/380-43-0x000000000A730000-0x000000000A8F2000-memory.dmp

Filesize
1.8MB

Download
memory/1928-34-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-14-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/1928-12-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/1928-16-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-17-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-18-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-20-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-21-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4244-9-0x0000000007460000-0x0000000007466000-memory.dmp

Filesize
24KB

Download
memory/4244-10-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/4244-1-0x00000000002F0000-0x00000000004F2000-memory.dmp

Filesize
2.0MB

Download
memory/4244-26-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4244-2-0x00000000058F0000-0x0000000005E94000-memory.dmp

Filesize
5.6MB

Download
memory/4244-19-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4244-3-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/4244-15-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4244-11-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4244-4-0x0000000005520000-0x00000000055BC000-memory.dmp

Filesize
624KB

Download
memory/4244-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/4244-8-0x0000000007550000-0x000000000756A000-memory.dmp

Filesize
104KB

Download
memory/4244-7-0x0000000006590000-0x000000000659A000-memory.dmp

Filesize
40KB

Download
memory/4244-6-0x00000000062E0000-0x0000000006324000-memory.dmp

Filesize
272KB

Download
memory/4244-5-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4756-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4756-31-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4756-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4756-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download