tofsee | 17e28b363f99494ceac5dee6f616a0acf5a72bb9a5d49743281e488c116cbe3b

General

Target

JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe
Size

11.7MB
MD5

36b5d4d05c3fd7041ad27c83dc3e2356
SHA1

56c07c25b07c58bd7b679d466db0b09b39c6290d
SHA256

17e28b363f99494ceac5dee6f616a0acf5a72bb9a5d49743281e488c116cbe3b
SHA512

249ee1796f211e10573fedbea9e3ef8e2f459f89d590da1901c5b8da4f4bc0525f063743fb99dd11d10955b4c96b56e7b1f7390163697743c9fd65826508f615
SSDEEP

6144:3U7GjEC3ezR7ba5Kr6zFIKBQG18IAHORqctttttttttttttttttttttttttttttN:3U7nZzRva51z2G18IAHeq

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
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
1336	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\uxdspvhr\ImagePath = "C:\\Windows\\SysWOW64\\uxdspvhr\\qiahgxip.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe

Deletes itself 1 IoCs

pid	Process
4224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1048	qiahgxip.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1048 set thread context of 4224	1048	qiahgxip.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3584	sc.exe
2156	sc.exe
4528	sc.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1040	2736	WerFault.exe	82
1912	1048	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qiahgxip.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 464	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	83
PID 2736 wrote to memory of 464	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	83
PID 2736 wrote to memory of 464	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	83
PID 2736 wrote to memory of 2524	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	85
PID 2736 wrote to memory of 2524	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	85
PID 2736 wrote to memory of 2524	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	85
PID 2736 wrote to memory of 2156	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	88
PID 2736 wrote to memory of 2156	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	88
PID 2736 wrote to memory of 2156	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	88
PID 2736 wrote to memory of 4528	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	90
PID 2736 wrote to memory of 4528	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	90
PID 2736 wrote to memory of 4528	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	90
PID 2736 wrote to memory of 3584	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	92
PID 2736 wrote to memory of 3584	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	92
PID 2736 wrote to memory of 3584	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	92
PID 2736 wrote to memory of 1336	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	95
PID 2736 wrote to memory of 1336	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	95
PID 2736 wrote to memory of 1336	2736	JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe	95
PID 1048 wrote to memory of 4224	1048	qiahgxip.exe	101
PID 1048 wrote to memory of 4224	1048	qiahgxip.exe	101
PID 1048 wrote to memory of 4224	1048	qiahgxip.exe	101
PID 1048 wrote to memory of 4224	1048	qiahgxip.exe	101
PID 1048 wrote to memory of 4224	1048	qiahgxip.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uxdspvhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qiahgxip.exe" C:\Windows\SysWOW64\uxdspvhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uxdspvhr binPath= "C:\Windows\SysWOW64\uxdspvhr\qiahgxip.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uxdspvhr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uxdspvhr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  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
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 1188
  2⤵
  - Program crash
  PID:1040

C:\Windows\SysWOW64\uxdspvhr\qiahgxip.exe
C:\Windows\SysWOW64\uxdspvhr\qiahgxip.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36b5d4d05c3fd7041ad27c83dc3e2356.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 524
  2⤵
  - Program crash
  PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2736 -ip 2736
1⤵
PID:4156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1048 -ip 1048
1⤵
PID:3468

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.7MB

MD5
296dc9f5bf7b4a1381ba545113c82f57

SHA1
139a47804803520380f2e8f5776ed572ece6a7c7

SHA256
155688c3501c06d733b36d0af31ffaf4d3683b431f5257dd445ba70bb535f9d9

SHA512
fc88025efca1a5fb50a0f4255bb88af168fe79173a203958c6555e3344033ca8416e22c3a91389e704a9761454386777282684ff5cdd6ac29fc41fa8be28c4d7

Download Submit
memory/1048-14-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/1048-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2736-1-0x0000000001930000-0x0000000001A30000-memory.dmp

Filesize
1024KB

Download
memory/2736-2-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/2736-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-9-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/2736-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/4224-13-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/4224-11-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/4224-15-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads