tofsee | 152e52489425d1eec835e4898ac961f508b691de0817679d630f33b5044fe8c6

General

Target

08b7f6b7fa0c3739b1d5a613acca95f0.exe
Size

13.6MB
MD5

08b7f6b7fa0c3739b1d5a613acca95f0
SHA1

a902654e7e6a6e33783f939ba4f328d693274453
SHA256

152e52489425d1eec835e4898ac961f508b691de0817679d630f33b5044fe8c6
SHA512

561ff87e01172a1af3f5519010ec0c1eaa6a2007875c3dd9023bb6448d9d1fb6a408cf0e52ec98e9efb18babb5a05b8a2571da13e9d83d5b0951f380dd751b97

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

qovrqzxo.exe

pid process

1332 qovrqzxo.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

840 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qovrqzxo.exe

description pid process target process

PID 1332 set thread context of 840 1332 qovrqzxo.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
1332	qovrqzxo.exe

pid	process
840	svchost.exe

description	pid	process	target process
PID 1332 set thread context of 840	1332	qovrqzxo.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

08b7f6b7fa0c3739b1d5a613acca95f0.exeqovrqzxo.exe

description	pid	process	target process
PID 1068 wrote to memory of 1624	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1624	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1624	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1624	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1784	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1784	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1784	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 1784	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	cmd.exe
PID 1068 wrote to memory of 740	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 740	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 740	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 740	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 1996	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 1996	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 1996	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 1996	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 336	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 336	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 336	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1068 wrote to memory of 336	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	sc.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1332 wrote to memory of 840	1332	qovrqzxo.exe	svchost.exe
PID 1068 wrote to memory of 1956	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	netsh.exe
PID 1068 wrote to memory of 1956	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	netsh.exe
PID 1068 wrote to memory of 1956	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	netsh.exe
PID 1068 wrote to memory of 1956	1068	08b7f6b7fa0c3739b1d5a613acca95f0.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\08b7f6b7fa0c3739b1d5a613acca95f0.exe
"C:\Users\Admin\AppData\Local\Temp\08b7f6b7fa0c3739b1d5a613acca95f0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iplsafna\
2⤵
PID:1624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qovrqzxo.exe" C:\Windows\SysWOW64\iplsafna\
2⤵
PID:1784

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create iplsafna binPath= "C:\Windows\SysWOW64\iplsafna\qovrqzxo.exe /d\"C:\Users\Admin\AppData\Local\Temp\08b7f6b7fa0c3739b1d5a613acca95f0.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description iplsafna "wifi internet conection"
2⤵
PID:1996

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start iplsafna
2⤵
PID:336

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
2⤵
PID:1956

C:\Windows\SysWOW64\iplsafna\qovrqzxo.exe
C:\Windows\SysWOW64\iplsafna\qovrqzxo.exe /d"C:\Users\Admin\AppData\Local\Temp\08b7f6b7fa0c3739b1d5a613acca95f0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1332

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Deletes itself
PID:840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\qovrqzxo.exe
MD5
8a1d21936f9f97d05c2352c990af78ee

SHA1
9d507c149a1b7243d79ed5b1a8eeb8eea94ceb2c

SHA256
ecc44a5368ce09243f61948793e8fecaa963639eb62bb90816438d5f6bd86683

SHA512
dea47bd1a0224fa7e006b789c633b8387aa519b275564ecee48a00a7893cd379cabad968af383c6f32b9dd41c0615c686ce8a98e97fb22e09b27bb443b4c5e15

Download Submit
C:\Windows\SysWOW64\iplsafna\qovrqzxo.exe
MD5
8a1d21936f9f97d05c2352c990af78ee

SHA1
9d507c149a1b7243d79ed5b1a8eeb8eea94ceb2c

SHA256
ecc44a5368ce09243f61948793e8fecaa963639eb62bb90816438d5f6bd86683

SHA512
dea47bd1a0224fa7e006b789c633b8387aa519b275564ecee48a00a7893cd379cabad968af383c6f32b9dd41c0615c686ce8a98e97fb22e09b27bb443b4c5e15

Download Submit
memory/336-7-0x0000000000000000-mapping.dmp

Download
memory/740-5-0x0000000000000000-mapping.dmp

Download
memory/840-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/840-10-0x0000000000089A6B-mapping.dmp

Download
memory/1624-2-0x0000000000000000-mapping.dmp

Download
memory/1784-3-0x0000000000000000-mapping.dmp

Download
memory/1956-12-0x0000000000000000-mapping.dmp

Download
memory/1996-6-0x0000000000000000-mapping.dmp

Download

Analysis

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