tofsee | b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74

General

Target

JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe
Size

257KB
MD5

bd8f74074139a4eebd38714fd34907ea
SHA1

513f813e25cd88d9fd40a10c5ec6360079e64c30
SHA256

b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74
SHA512

9e2708595c30e4a53b475db2448258091eccb8dd6dbcd078122d4680643cb123b5c6dfb024d60bac17d64fee914f6a103770fd83043476458d0c73d647f3b64b
SSDEEP

3072:uTjk+g7D/7ncnzNy6rVZE0pj9SpcvSyo7hs:uTjJ6/7ncA6hZE0pBSCF

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

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
3588	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\ocrkvwsg\ImagePath = "C:\\Windows\\SysWOW64\\ocrkvwsg\\lwbbfwhi.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_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe

Deletes itself 1 IoCs

pid	Process
5076	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	lwbbfwhi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 5076	2856	lwbbfwhi.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1096	sc.exe
4128	sc.exe
2004	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
1932	3492	WerFault.exe	82
2264	2856	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lwbbfwhi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 1180	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	83
PID 3492 wrote to memory of 1180	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	83
PID 3492 wrote to memory of 1180	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	83
PID 3492 wrote to memory of 3696	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	85
PID 3492 wrote to memory of 3696	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	85
PID 3492 wrote to memory of 3696	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	85
PID 3492 wrote to memory of 1096	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	87
PID 3492 wrote to memory of 1096	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	87
PID 3492 wrote to memory of 1096	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	87
PID 3492 wrote to memory of 4128	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	90
PID 3492 wrote to memory of 4128	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	90
PID 3492 wrote to memory of 4128	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	90
PID 3492 wrote to memory of 2004	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	92
PID 3492 wrote to memory of 2004	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	92
PID 3492 wrote to memory of 2004	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	92
PID 3492 wrote to memory of 3588	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	95
PID 3492 wrote to memory of 3588	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	95
PID 3492 wrote to memory of 3588	3492	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	95
PID 2856 wrote to memory of 5076	2856	lwbbfwhi.exe	101
PID 2856 wrote to memory of 5076	2856	lwbbfwhi.exe	101
PID 2856 wrote to memory of 5076	2856	lwbbfwhi.exe	101
PID 2856 wrote to memory of 5076	2856	lwbbfwhi.exe	101
PID 2856 wrote to memory of 5076	2856	lwbbfwhi.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ocrkvwsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lwbbfwhi.exe" C:\Windows\SysWOW64\ocrkvwsg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ocrkvwsg binPath= "C:\Windows\SysWOW64\ocrkvwsg\lwbbfwhi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ocrkvwsg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ocrkvwsg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2004
- 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:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3492 -s 1032
  2⤵
  - Program crash
  PID:1932

C:\Windows\SysWOW64\ocrkvwsg\lwbbfwhi.exe
C:\Windows\SysWOW64\ocrkvwsg\lwbbfwhi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 516
  2⤵
  - Program crash
  PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3492 -ip 3492
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2856 -ip 2856
1⤵
PID:1476

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\lwbbfwhi.exe

Filesize
14.8MB

MD5
7f8d931cb18be2d9add822105068d4fb

SHA1
8919d61e305234fd80bbaa98f371dce359260e76

SHA256
3b067bf91d181023ebf4b097db718941b9dac9f7bc5eb5c13b5984b9fe9a5f6f

SHA512
86407bb504b51a03a0e34bee95e6b5880501a72dc95a648a6205b5c0197785589b7920ca5cc5f7fb47db54f653889904a640f6583277e14b3ee3e2f0c6f8b2cc

Download Submit
memory/2856-14-0x0000000000400000-0x0000000002B76000-memory.dmp

Filesize
39.5MB

Download
memory/3492-0-0x0000000002D20000-0x0000000002D2D000-memory.dmp

Filesize
52KB

Download
memory/3492-1-0x0000000002D30000-0x0000000002D43000-memory.dmp

Filesize
76KB

Download
memory/3492-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3492-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3492-7-0x0000000002D20000-0x0000000002D2D000-memory.dmp

Filesize
52KB

Download
memory/3492-6-0x0000000000400000-0x0000000002B76000-memory.dmp

Filesize
39.5MB

Download
memory/3492-8-0x0000000002D30000-0x0000000002D43000-memory.dmp

Filesize
76KB

Download
memory/5076-10-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download
memory/5076-12-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download
memory/5076-13-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads