tofsee | 2da74bff266af2128ede65eed746b3b1261092021ce8aa9f33af315742a3e4ab

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2024, 15:26

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General

Target
90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe
Size 10.5MB
Sample240402-st8ajaeb5v
SHA256 2da74bff266af2128ede65eed746b3b1261092021ce8aa9f33af315742a3e4ab
MD5 90319fa377061b791d1b9d3a62a41a8a
SHA1 f22b86431b26afa5ee8399cb19859b5ba8c842f6
SHA512 a8abaf05c33c7028ccf33c9d5d8227c303a1a831cd3d9122fa912d56b01f2eb19a21987574950bf977c31fcc40a3cf6bf8e41518f3699de043c666212dd6e8ae
SSDEEP 6144:0wee3eUmeaedGxyF1t9cj9lxbxaMPaMfh4EfzowLG7:0De6TSsyF+jdxacX6kzo4O
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
4560	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\ddoguqdv\ImagePath = "C:\\Windows\\SysWOW64\\ddoguqdv\\xjqkpviq.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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3972	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	xjqkpviq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 3972	2672	xjqkpviq.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4024	sc.exe
3160	sc.exe
440	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
924	4736	WerFault.exe	85
368	2672	WerFault.exe	100

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 3088	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	88
PID 4736 wrote to memory of 3088	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	88
PID 4736 wrote to memory of 3088	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	88
PID 4736 wrote to memory of 1036	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	90
PID 4736 wrote to memory of 1036	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	90
PID 4736 wrote to memory of 1036	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	90
PID 4736 wrote to memory of 4024	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	92
PID 4736 wrote to memory of 4024	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	92
PID 4736 wrote to memory of 4024	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	92
PID 4736 wrote to memory of 3160	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	94
PID 4736 wrote to memory of 3160	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	94
PID 4736 wrote to memory of 3160	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	94
PID 4736 wrote to memory of 440	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	98
PID 4736 wrote to memory of 440	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	98
PID 4736 wrote to memory of 440	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	98
PID 4736 wrote to memory of 4560	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	101
PID 4736 wrote to memory of 4560	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	101
PID 4736 wrote to memory of 4560	4736	90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe	101
PID 2672 wrote to memory of 3972	2672	xjqkpviq.exe	108
PID 2672 wrote to memory of 3972	2672	xjqkpviq.exe	108
PID 2672 wrote to memory of 3972	2672	xjqkpviq.exe	108
PID 2672 wrote to memory of 3972	2672	xjqkpviq.exe	108
PID 2672 wrote to memory of 3972	2672	xjqkpviq.exe	108

C:\Users\Admin\AppData\Local\Temp\90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ddoguqdv\
  2⤵
  PID:3088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjqkpviq.exe" C:\Windows\SysWOW64\ddoguqdv\
  2⤵
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ddoguqdv binPath= "C:\Windows\SysWOW64\ddoguqdv\xjqkpviq.exe /d\"C:\Users\Admin\AppData\Local\Temp\90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ddoguqdv "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:3160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ddoguqdv
  2⤵
  - Launches sc.exe
  PID:440
- 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:4560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 1048
  2⤵
  - Program crash
  PID:924

C:\Windows\SysWOW64\ddoguqdv\xjqkpviq.exe
C:\Windows\SysWOW64\ddoguqdv\xjqkpviq.exe /d"C:\Users\Admin\AppData\Local\Temp\90319fa377061b791d1b9d3a62a41a8a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:3972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 520
  2⤵
  - Program crash
  PID:368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4736 -ip 4736
1⤵
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2672 -ip 2672
1⤵
PID:4456

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

xjqkpviq.exe

Path C:\Users\Admin\AppData\Local\Temp\xjqkpviq.exe
Size 13.4MB
SHA256 ece49d0cbadbb163153047e7f0b482d1c0289c4fdd38fd66a49d1ed719488dda
MD5 e76efb725dd61811ed69d58f435bb725
SHA1 3cd1248d73fbd70544be8e96479d2609ef99e2ed
SHA512 8e6f39ed3cc5665611ca783887b6212025282c6ec0595d04bfd2f47e7c70d4479d3480a22795a1402d0840971b19822d30314a3c86a14c0ab573c6fbdec81b42
SSDEEP 6144:0vee3eUmeaedGxyF1t9cj9lxbxaMPaMfh4EfzowLG7:0me6TSsyF+jdxacX6kzo4O
MD5 SHA1 SHA512 SSDEEP

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memory/2672-10-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/2672-11-0x0000000000400000-0x0000000000452000-memory.dmp

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memory/2672-16-0x0000000000400000-0x0000000000452000-memory.dmp

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memory/3972-12-0x0000000001080000-0x0000000001095000-memory.dmp

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memory/3972-15-0x0000000001080000-0x0000000001095000-memory.dmp

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memory/3972-17-0x0000000001080000-0x0000000001095000-memory.dmp

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memory/3972-18-0x0000000001080000-0x0000000001095000-memory.dmp

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memory/4736-4-0x0000000000400000-0x0000000000452000-memory.dmp

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memory/4736-2-0x0000000000700000-0x0000000000713000-memory.dmp

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memory/4736-8-0x0000000000400000-0x0000000000452000-memory.dmp

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memory/4736-9-0x0000000000700000-0x0000000000713000-memory.dmp

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memory/4736-1-0x0000000000730000-0x0000000000830000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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