tofsee | 846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea

General

Target

JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe
Size

160KB
MD5

fb35ce98c953322a42694830696a6bcf
SHA1

4cddac04f1b0a724fb89cf6a8cf20aeb295b2126
SHA256

846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea
SHA512

678938ab71f780a8ebf0e38f53ecd3351ba87524340141d58d273cc56ee0b6bad7a7b5eb8fc98918c58df5f3f45de8ab1776c08f6d4b06d85c8d2360d042133c
SSDEEP

1536:0ae1ySgZv4PWNemwPvh45bxEmnVGgk1Il/01UmuhOgg8QPerf1G5VpJHh9H+/RHW:LVSuQTyaF2M1UxOzT6G5xB9ERHTClX

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
1260	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\kbfnggbx\ImagePath = "C:\\Windows\\SysWOW64\\kbfnggbx\\xmrsmuxq.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_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe

Deletes itself 1 IoCs

pid	Process
4856	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3356	xmrsmuxq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3356 set thread context of 4856	3356	xmrsmuxq.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
2736	sc.exe
3508	sc.exe
5064	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
4716	3356	WerFault.exe	92
2772	2180	WerFault.exe	81

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	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.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	xmrsmuxq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 2180 wrote to memory of 4796	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	82
PID 2180 wrote to memory of 4796	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	82
PID 2180 wrote to memory of 4796	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	82
PID 2180 wrote to memory of 3316	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	84
PID 2180 wrote to memory of 3316	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	84
PID 2180 wrote to memory of 3316	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	84
PID 2180 wrote to memory of 2736	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	86
PID 2180 wrote to memory of 2736	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	86
PID 2180 wrote to memory of 2736	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	86
PID 2180 wrote to memory of 3508	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	88
PID 2180 wrote to memory of 3508	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	88
PID 2180 wrote to memory of 3508	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	88
PID 2180 wrote to memory of 5064	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	90
PID 2180 wrote to memory of 5064	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	90
PID 2180 wrote to memory of 5064	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	90
PID 3356 wrote to memory of 4856	3356	xmrsmuxq.exe	93
PID 3356 wrote to memory of 4856	3356	xmrsmuxq.exe	93
PID 3356 wrote to memory of 4856	3356	xmrsmuxq.exe	93
PID 3356 wrote to memory of 4856	3356	xmrsmuxq.exe	93
PID 3356 wrote to memory of 4856	3356	xmrsmuxq.exe	93
PID 2180 wrote to memory of 1260	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	95
PID 2180 wrote to memory of 1260	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	95
PID 2180 wrote to memory of 1260	2180	JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kbfnggbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xmrsmuxq.exe" C:\Windows\SysWOW64\kbfnggbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kbfnggbx binPath= "C:\Windows\SysWOW64\kbfnggbx\xmrsmuxq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kbfnggbx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kbfnggbx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5064
- 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:1260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 1220
  2⤵
  - Program crash
  PID:2772

C:\Windows\SysWOW64\kbfnggbx\xmrsmuxq.exe
C:\Windows\SysWOW64\kbfnggbx\xmrsmuxq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_846c64ed0a4502f5b189b257cb86c55e5228b6801e38eb992e5d5e3534d9d2ea.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3356
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3356 -s 532
  2⤵
  - Program crash
  PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2180 -ip 2180
1⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3356 -ip 3356
1⤵
PID:2644

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\xmrsmuxq.exe

Filesize
12.1MB

MD5
fec2f183bc1c0e7c593448d5a8b2e8d9

SHA1
f30f7009f9091d1c991843bb0577b720f90338d8

SHA256
35582d0c9186e96105eeb655e82a9813dca1128cb37beac98303b0c832f31f80

SHA512
39b53bbe7b608c966064ceac7eb6f1fe486d994f868ee82ce643a7f7ab32f5ceb7302e20da7a30bd5feffbc22d70b8ea6c4d89252e67465c482fc424783ed0f3

Download Submit
memory/2180-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-1-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/2180-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-0-0x00000000004C0000-0x00000000004CD000-memory.dmp

Filesize
52KB

Download
memory/2180-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2180-15-0x00000000004C0000-0x00000000004CD000-memory.dmp

Filesize
52KB

Download
memory/2180-16-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/3356-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3356-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3356-8-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3356-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4856-12-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4856-9-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4856-18-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4856-19-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4856-20-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads