tofsee | 789e9198d141f39bf030563420328dab4477ac3d60cc87244c6aac684f0aac5e

General

Target

b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe
Size

13.6MB
MD5

b253f5b8d1f9aad76587136d065831e2
SHA1

1b52e954d04c96a82e24f74ed38ab1136cdec4f6
SHA256

789e9198d141f39bf030563420328dab4477ac3d60cc87244c6aac684f0aac5e
SHA512

1ab9b1c968ab3ff32b9e8e19d1bd7d6cd1d19ae601ea86cf20eab684036c0b7a0464f45e36a46468c4684f84eb61217520ee14be862a72e5c075e4751c12a4c3
SSDEEP

98304:cvjOF//////////////////////////////////////////////////////////H:m

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.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
636	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\sjbusfbp\ImagePath = "C:\\Windows\\SysWOW64\\sjbusfbp\\qhdkbaei.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2276	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1380	qhdkbaei.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1380 set thread context of 2276	1380	qhdkbaei.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2272	sc.exe
3668	sc.exe
1656	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
3416	2384	WerFault.exe	81
4812	1380	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qhdkbaei.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 2384 wrote to memory of 3360	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	82
PID 2384 wrote to memory of 3360	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	82
PID 2384 wrote to memory of 3360	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	82
PID 2384 wrote to memory of 4540	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	84
PID 2384 wrote to memory of 4540	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	84
PID 2384 wrote to memory of 4540	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	84
PID 2384 wrote to memory of 2272	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	86
PID 2384 wrote to memory of 2272	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	86
PID 2384 wrote to memory of 2272	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	86
PID 2384 wrote to memory of 3668	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	88
PID 2384 wrote to memory of 3668	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	88
PID 2384 wrote to memory of 3668	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	88
PID 2384 wrote to memory of 1656	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	90
PID 2384 wrote to memory of 1656	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	90
PID 2384 wrote to memory of 1656	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	90
PID 2384 wrote to memory of 636	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	95
PID 2384 wrote to memory of 636	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	95
PID 2384 wrote to memory of 636	2384	b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe	95
PID 1380 wrote to memory of 2276	1380	qhdkbaei.exe	102
PID 1380 wrote to memory of 2276	1380	qhdkbaei.exe	102
PID 1380 wrote to memory of 2276	1380	qhdkbaei.exe	102
PID 1380 wrote to memory of 2276	1380	qhdkbaei.exe	102
PID 1380 wrote to memory of 2276	1380	qhdkbaei.exe	102

C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sjbusfbp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhdkbaei.exe" C:\Windows\SysWOW64\sjbusfbp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sjbusfbp binPath= "C:\Windows\SysWOW64\sjbusfbp\qhdkbaei.exe /d\"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sjbusfbp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sjbusfbp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1656
- 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:636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 1212
  2⤵
  - Program crash
  PID:3416

C:\Windows\SysWOW64\sjbusfbp\qhdkbaei.exe
C:\Windows\SysWOW64\sjbusfbp\qhdkbaei.exe /d"C:\Users\Admin\AppData\Local\Temp\b253f5b8d1f9aad76587136d065831e2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 508
  2⤵
  - Program crash
  PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2384 -ip 2384
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1380 -ip 1380
1⤵
PID:4460

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\qhdkbaei.exe

Filesize
10.7MB

MD5
ef87e60e758cbdcb85a9c4d8332333ac

SHA1
c8c83ff4e38045b884a48564678ebf557d13e891

SHA256
ed32504ff668c83011fb5582b9ffd6907c92f5890bd92ca6e184c2231988dd75

SHA512
02b346e9429a336a747482f5b7dd3b4bf90426f74c8ae7cd6a530ca6122eb406eafa1ab3594fb9f620ee1b1dbe56c56d8e4159afb6ad88eb4c1c5c3f2ca78d9e

Download Submit
memory/1380-15-0x0000000000400000-0x0000000000C1F000-memory.dmp

Filesize
8.1MB

Download
memory/2276-11-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/2276-13-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/2276-14-0x0000000000560000-0x0000000000575000-memory.dmp

Filesize
84KB

Download
memory/2384-1-0x0000000000F50000-0x0000000001050000-memory.dmp

Filesize
1024KB

Download
memory/2384-2-0x0000000000EC0000-0x0000000000ED3000-memory.dmp

Filesize
76KB

Download
memory/2384-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-7-0x0000000000400000-0x0000000000C1F000-memory.dmp

Filesize
8.1MB

Download
memory/2384-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-8-0x0000000000EC0000-0x0000000000ED3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads