tofsee | d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff

General

Target

JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe
Size

169KB
MD5

5a3bb3813a61da85d329eee5f1ed86e1
SHA1

bd25da233d0a6cf7e83dcb8a1fcf32bfe54692c0
SHA256

d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff
SHA512

53b2294a3bf250896644ed0eccb3b98f72d440baf85e97ca87f92d985bf40e6d123c92289e518dd6da7f10eee8389074d9acfa3703cc0c26a336c46752570b3a
SSDEEP

3072:ePnHfTpEBXlX/dA3FdrJS/SfeqJWHzqWdpMFIXwo2:gnHLpEBXlPdA3Fi/rqJezBpMGE

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
4888	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\jvmxuyof\ImagePath = "C:\\Windows\\SysWOW64\\jvmxuyof\\ohcoshs.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_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe

Deletes itself 1 IoCs

pid	Process
4392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2200	ohcoshs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2200 set thread context of 4392	2200	ohcoshs.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3212	sc.exe
2192	sc.exe
1648	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
3932	3692	WerFault.exe	84
5032	2200	WerFault.exe	96

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	ohcoshs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 444	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	85
PID 3692 wrote to memory of 444	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	85
PID 3692 wrote to memory of 444	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	85
PID 3692 wrote to memory of 832	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	87
PID 3692 wrote to memory of 832	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	87
PID 3692 wrote to memory of 832	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	87
PID 3692 wrote to memory of 2192	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	89
PID 3692 wrote to memory of 2192	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	89
PID 3692 wrote to memory of 2192	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	89
PID 3692 wrote to memory of 1648	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	91
PID 3692 wrote to memory of 1648	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	91
PID 3692 wrote to memory of 1648	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	91
PID 3692 wrote to memory of 3212	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	94
PID 3692 wrote to memory of 3212	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	94
PID 3692 wrote to memory of 3212	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	94
PID 2200 wrote to memory of 4392	2200	ohcoshs.exe	97
PID 2200 wrote to memory of 4392	2200	ohcoshs.exe	97
PID 2200 wrote to memory of 4392	2200	ohcoshs.exe	97
PID 2200 wrote to memory of 4392	2200	ohcoshs.exe	97
PID 2200 wrote to memory of 4392	2200	ohcoshs.exe	97
PID 3692 wrote to memory of 4888	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	99
PID 3692 wrote to memory of 4888	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	99
PID 3692 wrote to memory of 4888	3692	JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvmxuyof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohcoshs.exe" C:\Windows\SysWOW64\jvmxuyof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvmxuyof binPath= "C:\Windows\SysWOW64\jvmxuyof\ohcoshs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvmxuyof "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvmxuyof
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3212
- 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:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3692 -s 1244
  2⤵
  - Program crash
  PID:3932

C:\Windows\SysWOW64\jvmxuyof\ohcoshs.exe
C:\Windows\SysWOW64\jvmxuyof\ohcoshs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d32222894f943562ae2125c8ad2ee7bd3f642fc25da26b8888cd37373bf4aeff.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 544
  2⤵
  - Program crash
  PID:5032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3692 -ip 3692
1⤵
PID:960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2200 -ip 2200
1⤵
PID:4944

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\ohcoshs.exe

Filesize
10.2MB

MD5
c3f8cf92ca6e13e672b8c96b2844d8c1

SHA1
06d071a11973b422c87ff6f5a518a42b78a3af8f

SHA256
d7844d421c7a2e241f6a6add786a6d507c45f102d0b0f7ca0e26502333492b22

SHA512
b3bbaa294ee4662c014afd63253551054a411afa28cf192b423b55727c3ec7a2fd4f75a2da65b1d9b6b3a6f280393195a50017234775287f7c30caa4e1f9b3d3

Download Submit
memory/2200-12-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2200-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3692-15-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3692-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3692-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3692-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3692-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3692-14-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3692-13-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4392-7-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/4392-10-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/4392-17-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/4392-18-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/4392-19-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads