tofsee | ce703770a7f080de1de305d8834cd5f57fd3d81877f231a97dc450386c2fc2bf

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31/03/2024, 23:38

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General

Target
615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe
Size 12.1MB
Sample240331-3mw9ssfd5z
SHA256 ce703770a7f080de1de305d8834cd5f57fd3d81877f231a97dc450386c2fc2bf
MD5 615ed353f7a18d3394a9867dffacccd0
SHA1 f193396443674234d42b5c07bfb182aada642b32
SHA512 094090f52ed9c1bdc9ce8b6aa60a32551ceee78d6a4a63dc03d15fc1afcb17b10221022a28dd8e7a6fc16486785980521c71385a2c474b0614886c6c4db610c9
SSDEEP 12288:RUR4+0lGrUPDHQahTzrdCcrFy55555555555555555555555555555555555555p:Rl+PrmrXrd1p
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru
refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2840	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\tjnoufsr\ImagePath = "C:\\Windows\\SysWOW64\\tjnoufsr\\qodpjfqg.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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1548	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3760	qodpjfqg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 1548	3760	qodpjfqg.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
3584	sc.exe
1700	sc.exe
2128	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
3916	116	WerFault.exe	85
2992	3760	WerFault.exe	101

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2524	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	89
PID 116 wrote to memory of 2524	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	89
PID 116 wrote to memory of 2524	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	89
PID 116 wrote to memory of 384	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	91
PID 116 wrote to memory of 384	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	91
PID 116 wrote to memory of 384	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	91
PID 116 wrote to memory of 1700	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	93
PID 116 wrote to memory of 1700	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	93
PID 116 wrote to memory of 1700	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	93
PID 116 wrote to memory of 2128	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	95
PID 116 wrote to memory of 2128	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	95
PID 116 wrote to memory of 2128	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	95
PID 116 wrote to memory of 3584	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	99
PID 116 wrote to memory of 3584	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	99
PID 116 wrote to memory of 3584	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	99
PID 116 wrote to memory of 2840	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	102
PID 116 wrote to memory of 2840	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	102
PID 116 wrote to memory of 2840	116	615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe	102
PID 3760 wrote to memory of 1548	3760	qodpjfqg.exe	108
PID 3760 wrote to memory of 1548	3760	qodpjfqg.exe	108
PID 3760 wrote to memory of 1548	3760	qodpjfqg.exe	108
PID 3760 wrote to memory of 1548	3760	qodpjfqg.exe	108
PID 3760 wrote to memory of 1548	3760	qodpjfqg.exe	108

C:\Users\Admin\AppData\Local\Temp\615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tjnoufsr\
  2⤵
  PID:2524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qodpjfqg.exe" C:\Windows\SysWOW64\tjnoufsr\
  2⤵
  PID:384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tjnoufsr binPath= "C:\Windows\SysWOW64\tjnoufsr\qodpjfqg.exe /d\"C:\Users\Admin\AppData\Local\Temp\615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tjnoufsr "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tjnoufsr
  2⤵
  - Launches sc.exe
  PID:3584
- 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:2840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1036
  2⤵
  - Program crash
  PID:3916

C:\Windows\SysWOW64\tjnoufsr\qodpjfqg.exe
C:\Windows\SysWOW64\tjnoufsr\qodpjfqg.exe /d"C:\Users\Admin\AppData\Local\Temp\615ed353f7a18d3394a9867dffacccd0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:1548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 512
  2⤵
  - Program crash
  PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 116 -ip 116
1⤵
PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3760 -ip 3760
1⤵
PID:4520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

qodpjfqg.exe

Path C:\Users\Admin\AppData\Local\Temp\qodpjfqg.exe
Size 13.9MB
SHA256 c1ce7a2676aba5fb60a877d1933fed67c9e0151031b5e9bdd71df8a966ceaa6e
MD5 0dea0d7d71f40f14e74175b3b6a1201a
SHA1 02b1a62ed6572f30e8bc4873bbe340eaae2eb7d5
SHA512 f3e1d5378413f3fe95e4d67f34e90ecb8229941f0e99ca4d6b9a30d33d056455c99fc6097ee9c5ab1a115ac556bc5a209325375a8d2ce422b143e544b3721d6e
SSDEEP 12288:mUR4+0lGrUPDHQahTzrdCcrFy55555555555555555555555555555555555555P:ml+PrmrXrd1p
MD5 SHA1 SHA512 SSDEEP

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memory/116-9-0x0000000000460000-0x0000000000473000-memory.dmp

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memory/116-1-0x0000000000480000-0x0000000000580000-memory.dmp

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memory/116-3-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/116-8-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/116-2-0x0000000000460000-0x0000000000473000-memory.dmp

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memory/1548-15-0x0000000000340000-0x0000000000355000-memory.dmp

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memory/1548-12-0x0000000000340000-0x0000000000355000-memory.dmp

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memory/1548-16-0x0000000000340000-0x0000000000355000-memory.dmp

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memory/1548-18-0x0000000000340000-0x0000000000355000-memory.dmp

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memory/1548-19-0x0000000000340000-0x0000000000355000-memory.dmp

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memory/3760-11-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/3760-10-0x0000000000540000-0x0000000000640000-memory.dmp

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memory/3760-17-0x0000000000400000-0x0000000000454000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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