tofsee | c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9

General

Target

c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe
Size

240KB
MD5

a89a288b919ddd651b732bb9bd007036
SHA1

6c92fac6954dfe04ce6308557fda191bdb1dadbf
SHA256

c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9
SHA512

cce4f2e6c3c8953226005d860b2413abb5ad6cd89b4fda244725147ac38cee0ea6002100a406c45d9729a66107acaf662b6b0fba68816e5823424ff0776f4809
SSDEEP

3072:47WLco6DTm+7AOxmcacr5CV+S5ALQ4+EDUZwW:4SLco6vF7Jscac7d+Ex

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
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
1008	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\cpdmaoow\ImagePath = "C:\\Windows\\SysWOW64\\cpdmaoow\\jqxapdwg.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe

Deletes itself 1 IoCs

pid	Process
2352	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3316	jqxapdwg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3316 set thread context of 2352	3316	jqxapdwg.exe	96

Launches sc.exe 3 IoCs

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

pid	Process
3984	sc.exe
4792	sc.exe
2116	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4468	3316	WerFault.exe	95
2380	1356	WerFault.exe	81

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 2328	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	82
PID 1356 wrote to memory of 2328	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	82
PID 1356 wrote to memory of 2328	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	82
PID 1356 wrote to memory of 2412	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	87
PID 1356 wrote to memory of 2412	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	87
PID 1356 wrote to memory of 2412	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	87
PID 1356 wrote to memory of 3984	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	89
PID 1356 wrote to memory of 3984	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	89
PID 1356 wrote to memory of 3984	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	89
PID 1356 wrote to memory of 4792	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	91
PID 1356 wrote to memory of 4792	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	91
PID 1356 wrote to memory of 4792	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	91
PID 1356 wrote to memory of 2116	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	93
PID 1356 wrote to memory of 2116	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	93
PID 1356 wrote to memory of 2116	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	93
PID 3316 wrote to memory of 2352	3316	jqxapdwg.exe	96
PID 3316 wrote to memory of 2352	3316	jqxapdwg.exe	96
PID 3316 wrote to memory of 2352	3316	jqxapdwg.exe	96
PID 3316 wrote to memory of 2352	3316	jqxapdwg.exe	96
PID 3316 wrote to memory of 2352	3316	jqxapdwg.exe	96
PID 1356 wrote to memory of 1008	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	98
PID 1356 wrote to memory of 1008	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	98
PID 1356 wrote to memory of 1008	1356	c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe	98

C:\Users\Admin\AppData\Local\Temp\c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe
"C:\Users\Admin\AppData\Local\Temp\c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cpdmaoow\
  2⤵
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqxapdwg.exe" C:\Windows\SysWOW64\cpdmaoow\
  2⤵
  PID:2412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cpdmaoow binPath= "C:\Windows\SysWOW64\cpdmaoow\jqxapdwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:3984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cpdmaoow "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:4792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cpdmaoow
  2⤵
  - Launches sc.exe
  PID:2116
- 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⤵
  - Modifies Windows Firewall
  PID:1008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 780
  2⤵
  - Program crash
  PID:2380

C:\Windows\SysWOW64\cpdmaoow\jqxapdwg.exe
C:\Windows\SysWOW64\cpdmaoow\jqxapdwg.exe /d"C:\Users\Admin\AppData\Local\Temp\c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:2352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 560
  2⤵
  - Program crash
  PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1356 -ip 1356
1⤵
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3316 -ip 3316
1⤵
PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\jqxapdwg.exe

Filesize
13.9MB

MD5
1080262db3ff14413fc263f9fe74dbe7

SHA1
032262c45dac9c6f9213820fbeabb79bede43e9d

SHA256
735ec5d5d311e3482932495dcd6b5c37d6b4a6192fb2f212ad87905448b945fc

SHA512
42f3d637ebdab21b032dae1c219336a1698e2f4a3a602d03071c732823091b719fc7acbc612650d96a2f30a917c0b0f4423c427f6fe626804e6dc0c03ce256b4

Download Submit
memory/1356-1-0x0000000001CC0000-0x0000000001DC0000-memory.dmp

Filesize
1024KB

Download
memory/1356-2-0x00000000037C0000-0x00000000037D3000-memory.dmp

Filesize
76KB

Download
memory/1356-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-12-0x00000000037C0000-0x00000000037D3000-memory.dmp

Filesize
76KB

Download
memory/1356-11-0x0000000000400000-0x0000000001BB7000-memory.dmp

Filesize
23.7MB

Download
memory/2352-8-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/2352-14-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/2352-15-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3316-10-0x0000000000400000-0x0000000001BB7000-memory.dmp

Filesize
23.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads