tofsee | a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232

General

Target

JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe
Size

169KB
MD5

54bd5f89f412ae17884504b9a86c5e63
SHA1

8c596d102e6836e640a083ed4f9e9d127f919749
SHA256

a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232
SHA512

66342f222dc8739599c51d0f46e0c71dc2649734717c33dc940a56fb080508c30f64f289f414c2c37a0c807fb4e5cb2761ca6e41b2b372fbd139b90a089535ce
SSDEEP

3072:g5FWLk1FgKtHVuVtDcfLHQT0WXFl5TSQtXV7YZScM+kYBUS92:EMg1FgKRVu3DcTHQTvDTtxYgzMy

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
4752	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\ahlokkwu\ImagePath = "C:\\Windows\\SysWOW64\\ahlokkwu\\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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe

Deletes itself 1 IoCs

pid	Process
4212	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	ohvhztvi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 4212	2856	ohvhztvi.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4700	sc.exe
4164	sc.exe
2020	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
1512	2856	WerFault.exe	96
1904	2836	WerFault.exe	84

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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 2540	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	85
PID 2836 wrote to memory of 2540	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	85
PID 2836 wrote to memory of 2540	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	85
PID 2836 wrote to memory of 652	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	87
PID 2836 wrote to memory of 652	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	87
PID 2836 wrote to memory of 652	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	87
PID 2836 wrote to memory of 4164	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	89
PID 2836 wrote to memory of 4164	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	89
PID 2836 wrote to memory of 4164	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	89
PID 2836 wrote to memory of 2020	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	91
PID 2836 wrote to memory of 2020	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	91
PID 2836 wrote to memory of 2020	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	91
PID 2836 wrote to memory of 4700	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	94
PID 2836 wrote to memory of 4700	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	94
PID 2836 wrote to memory of 4700	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	94
PID 2856 wrote to memory of 4212	2856	ohvhztvi.exe	97
PID 2856 wrote to memory of 4212	2856	ohvhztvi.exe	97
PID 2856 wrote to memory of 4212	2856	ohvhztvi.exe	97
PID 2856 wrote to memory of 4212	2856	ohvhztvi.exe	97
PID 2856 wrote to memory of 4212	2856	ohvhztvi.exe	97
PID 2836 wrote to memory of 4752	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	99
PID 2836 wrote to memory of 4752	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	99
PID 2836 wrote to memory of 4752	2836	JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ahlokkwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohvhztvi.exe" C:\Windows\SysWOW64\ahlokkwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ahlokkwu binPath= "C:\Windows\SysWOW64\ahlokkwu\ohvhztvi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ahlokkwu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ahlokkwu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4700
- 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:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2836 -s 1040
  2⤵
  - Program crash
  PID:1904

C:\Windows\SysWOW64\ahlokkwu\ohvhztvi.exe
C:\Windows\SysWOW64\ahlokkwu\ohvhztvi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8fbca1fa917a16435b65abf5e83d85dcd4514f401ca4b635691f95d44834232.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:4212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 528
  2⤵
  - Program crash
  PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2836 -ip 2836
1⤵
PID:2412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2856 -ip 2856
1⤵
PID:3132

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
13.2MB

MD5
f9365c5a0205fa6f6639da15cf8cdd0b

SHA1
aadf306c737e5f1aafbe39a916a9bf1cb58e9765

SHA256
8a6436519b536978294f8a9a9ea30be396d801eb0615045e5fe48fd309625b0a

SHA512
d35004723a771b283e6de8d4d8f75f19c329c1badd2cd0bb10fcd325f088edce3cddf121b5979a2b2a3d5db795ae009ab773f02e81d9fc56371535b0eb7540f4

Download Submit
memory/2836-15-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2836-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2836-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2836-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2836-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2836-16-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2836-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2856-13-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2856-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4212-11-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4212-8-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4212-18-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4212-19-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4212-20-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads