tofsee | 31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62

General

Target

JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
Size

187KB
MD5

e51f2c8d6cf01eb1334b595012f4458a
SHA1

29750148c250ac59edd7015d8136c01cc030ea96
SHA256

31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62
SHA512

76a801b9a9630c89e5e869787f83f1a8c6e2e897b72cb20469eefd0900a16426a67316e44da01fa60d50d360ed03d34d22884f3570f178dc8e302227d6526805
SSDEEP

3072:57ojA4DTPi9x53DbgRCm/m2+XhcrJ2l3c3LZIpZa9uD6Vdyhk9:YA4DTPil3Dq/d+Rc8c36wVf

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
4504	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\ubbfpwkh\ImagePath = "C:\\Windows\\SysWOW64\\ubbfpwkh\\agbenwwr.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe

Deletes itself 1 IoCs

pid	Process
1920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4428	agbenwwr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4428 set thread context of 1920	4428	agbenwwr.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4988	sc.exe
1196	sc.exe
2340	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
416	1680	WerFault.exe	81
2088	4428	WerFault.exe	92

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	agbenwwr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 3560	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	82
PID 1680 wrote to memory of 3560	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	82
PID 1680 wrote to memory of 3560	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	82
PID 1680 wrote to memory of 4856	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	84
PID 1680 wrote to memory of 4856	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	84
PID 1680 wrote to memory of 4856	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	84
PID 1680 wrote to memory of 4988	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	86
PID 1680 wrote to memory of 4988	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	86
PID 1680 wrote to memory of 4988	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	86
PID 1680 wrote to memory of 1196	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	88
PID 1680 wrote to memory of 1196	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	88
PID 1680 wrote to memory of 1196	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	88
PID 1680 wrote to memory of 2340	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	90
PID 1680 wrote to memory of 2340	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	90
PID 1680 wrote to memory of 2340	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	90
PID 1680 wrote to memory of 4504	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	93
PID 1680 wrote to memory of 4504	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	93
PID 1680 wrote to memory of 4504	1680	JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe	93
PID 4428 wrote to memory of 1920	4428	agbenwwr.exe	98
PID 4428 wrote to memory of 1920	4428	agbenwwr.exe	98
PID 4428 wrote to memory of 1920	4428	agbenwwr.exe	98
PID 4428 wrote to memory of 1920	4428	agbenwwr.exe	98
PID 4428 wrote to memory of 1920	4428	agbenwwr.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ubbfpwkh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\agbenwwr.exe" C:\Windows\SysWOW64\ubbfpwkh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ubbfpwkh binPath= "C:\Windows\SysWOW64\ubbfpwkh\agbenwwr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ubbfpwkh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ubbfpwkh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2340
- 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:4504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 1148
  2⤵
  - Program crash
  PID:416

C:\Windows\SysWOW64\ubbfpwkh\agbenwwr.exe
C:\Windows\SysWOW64\ubbfpwkh\agbenwwr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31a7b460acc977402548f8d7fbf33376ace8c82a0eca47a0b0d69433c1a4ba62.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 508
  2⤵
  - Program crash
  PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1680 -ip 1680
1⤵
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4428 -ip 4428
1⤵
PID:1156

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\agbenwwr.exe

Filesize
14.8MB

MD5
d5d0eb914c98ee5ade86d82815650692

SHA1
65cf927d1867e1a7fa5bce2dfaf3866864b3bc87

SHA256
e0ad4025fe10560fe5730643b2b114a286964bdc0a64d7346a39efcabb52e2ca

SHA512
53986a391edd61d69f0b7524526d4af5f2577a2fffd635486f33e91926be819f5b46b691b37cb25fae4731e258053f51401b875742d7ab22b02e37fbe778f765

Download Submit
memory/1680-7-0x00000000004F0000-0x00000000004FD000-memory.dmp

Filesize
52KB

Download
memory/1680-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1680-1-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/1680-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1680-8-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/1680-0-0x00000000004F0000-0x00000000004FD000-memory.dmp

Filesize
52KB

Download
memory/1680-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1920-13-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/1920-15-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/1920-16-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/4428-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4428-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4428-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4428-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads