tofsee | aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65

General

Target

JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe
Size

177KB
MD5

54f2cea10632e47ab38d113d587ce32c
SHA1

f3f5d9d585045d0c51ac741605a3ae990719db02
SHA256

aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65
SHA512

e460a1aa990ee7fb908c9b44a79dc648e7f9a58362e45a05a592642026452aa8790993d782a41f97c8757aba05a611cbf6fd2ddebc41f9501e0198c2c4e05fac
SSDEEP

3072:F7ea06Z4EKxA+xZGkXL09dtE03aotb1dSVcsV93:66CEKxA+y9dtE27gV93

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
4544	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\stxrflqh\ImagePath = "C:\\Windows\\SysWOW64\\stxrflqh\\ohvhztvi.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe

Deletes itself 1 IoCs

pid	Process
4024	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	ohvhztvi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 4024	2308	ohvhztvi.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3280	sc.exe
5032	sc.exe
3196	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
696	2220	WerFault.exe	82
4640	2308	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohvhztvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 860	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	83
PID 2220 wrote to memory of 860	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	83
PID 2220 wrote to memory of 860	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	83
PID 2220 wrote to memory of 4436	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	85
PID 2220 wrote to memory of 4436	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	85
PID 2220 wrote to memory of 4436	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	85
PID 2220 wrote to memory of 3280	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	87
PID 2220 wrote to memory of 3280	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	87
PID 2220 wrote to memory of 3280	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	87
PID 2220 wrote to memory of 5032	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	89
PID 2220 wrote to memory of 5032	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	89
PID 2220 wrote to memory of 5032	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	89
PID 2220 wrote to memory of 3196	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	92
PID 2220 wrote to memory of 3196	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	92
PID 2220 wrote to memory of 3196	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	92
PID 2308 wrote to memory of 4024	2308	ohvhztvi.exe	95
PID 2308 wrote to memory of 4024	2308	ohvhztvi.exe	95
PID 2308 wrote to memory of 4024	2308	ohvhztvi.exe	95
PID 2308 wrote to memory of 4024	2308	ohvhztvi.exe	95
PID 2308 wrote to memory of 4024	2308	ohvhztvi.exe	95
PID 2220 wrote to memory of 4544	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	96
PID 2220 wrote to memory of 4544	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	96
PID 2220 wrote to memory of 4544	2220	JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\stxrflqh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohvhztvi.exe" C:\Windows\SysWOW64\stxrflqh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create stxrflqh binPath= "C:\Windows\SysWOW64\stxrflqh\ohvhztvi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description stxrflqh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start stxrflqh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3196
- 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:4544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 1036
  2⤵
  - Program crash
  PID:696

C:\Windows\SysWOW64\stxrflqh\ohvhztvi.exe
C:\Windows\SysWOW64\stxrflqh\ohvhztvi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aea58b6cb75a81c29db530feb8f1bbf0f15c7727ee0264877bc6fc80b5fc8b65.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 524
  2⤵
  - Program crash
  PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2308 -ip 2308
1⤵
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2220 -ip 2220
1⤵
PID:4800

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

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Downloads

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

Filesize
13.3MB

MD5
62687e38e2e3d23cd0d15872580fb515

SHA1
c45313b269af053aee3ab1b9c13a440ad1dc5e90

SHA256
4a0c7cfe42146a15031bbf5043adffefaa00c3d49361ff44d7bbd5763f355cb6

SHA512
1b9096507c6a5fa30151d58b0490da2bde0d233d345f3425350f5720e4f28226b93fb049da63567442d5a3b70eab7476e726146cd24ef437e978b2e72f950fc8

Download Submit
memory/2220-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2220-1-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download
memory/2220-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-0-0x00000000005E0000-0x00000000005ED000-memory.dmp

Filesize
52KB

Download
memory/2220-16-0x00000000005E0000-0x00000000005ED000-memory.dmp

Filesize
52KB

Download
memory/2220-17-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download
memory/2220-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2308-14-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2308-8-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2308-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4024-12-0x0000000000E10000-0x0000000000E25000-memory.dmp

Filesize
84KB

Download
memory/4024-9-0x0000000000E10000-0x0000000000E25000-memory.dmp

Filesize
84KB

Download
memory/4024-19-0x0000000000E10000-0x0000000000E25000-memory.dmp

Filesize
84KB

Download
memory/4024-20-0x0000000000E10000-0x0000000000E25000-memory.dmp

Filesize
84KB

Download
memory/4024-21-0x0000000000E10000-0x0000000000E25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads