tofsee | 3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9

General

Target

JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe
Size

237KB
MD5

42b410532b41241c0ea3bab2a448ba26
SHA1

2b7258ab8a0decda5cbf7d92d7506089df88c739
SHA256

3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9
SHA512

a211e69bc11dfff8e9f226eeba322c6719e76533adfc3274902b7d14cf3589b7b2074c697fecabb66e803a2d7b2f2d88a5f5e49c1d857abbacec888afe3f4231
SSDEEP

3072:i7Ms8zFqBRFmDU/YxGdypOiOCW7Qse0XkMT39UYpWrxpzbgqru2sxkgaBChApZaf:V1JqBRFmDU/cNEzHpuzbgwujigaLwVf

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
1380	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\ipmvgyg\ImagePath = "C:\\Windows\\SysWOW64\\ipmvgyg\\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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe

Deletes itself 1 IoCs

pid	Process
4492	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4160	xmrsmuxq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 4492	4160	xmrsmuxq.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
4528	sc.exe
1260	sc.exe
1788	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
4272	748	WerFault.exe	82
1064	4160	WerFault.exe	93

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.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	xmrsmuxq.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 4100	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	83
PID 748 wrote to memory of 4100	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	83
PID 748 wrote to memory of 4100	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	83
PID 748 wrote to memory of 784	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	85
PID 748 wrote to memory of 784	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	85
PID 748 wrote to memory of 784	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	85
PID 748 wrote to memory of 4528	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	87
PID 748 wrote to memory of 4528	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	87
PID 748 wrote to memory of 4528	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	87
PID 748 wrote to memory of 1260	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	89
PID 748 wrote to memory of 1260	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	89
PID 748 wrote to memory of 1260	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	89
PID 748 wrote to memory of 1788	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	91
PID 748 wrote to memory of 1788	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	91
PID 748 wrote to memory of 1788	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	91
PID 748 wrote to memory of 1380	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	94
PID 748 wrote to memory of 1380	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	94
PID 748 wrote to memory of 1380	748	JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe	94
PID 4160 wrote to memory of 4492	4160	xmrsmuxq.exe	99
PID 4160 wrote to memory of 4492	4160	xmrsmuxq.exe	99
PID 4160 wrote to memory of 4492	4160	xmrsmuxq.exe	99
PID 4160 wrote to memory of 4492	4160	xmrsmuxq.exe	99
PID 4160 wrote to memory of 4492	4160	xmrsmuxq.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ipmvgyg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xmrsmuxq.exe" C:\Windows\SysWOW64\ipmvgyg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ipmvgyg binPath= "C:\Windows\SysWOW64\ipmvgyg\xmrsmuxq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ipmvgyg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ipmvgyg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1788
- 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:1380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 1208
  2⤵
  - Program crash
  PID:4272

C:\Windows\SysWOW64\ipmvgyg\xmrsmuxq.exe
C:\Windows\SysWOW64\ipmvgyg\xmrsmuxq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c25bc661050f4351c5d5c213a8811c3f09471cf27eeb90014a84ec332b3fce9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 508
  2⤵
  - Program crash
  PID:1064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 748 -ip 748
1⤵
PID:2700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4160 -ip 4160
1⤵
PID:3028

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
12.7MB

MD5
b135294b92f468caa35c9770fd4545f3

SHA1
ef8e2504d1ce634c7f06875cd1c2d6b194f6e00e

SHA256
180f91d76556fd159dc67d5e40cc97745f29b90b0098309ed484555eedeeb2e5

SHA512
5b68a0857d155a0ab61110af101b767a6d58fd907198e25f533e551094d1ab16912abe286407f27d25cc269ab210ecf6d11b68e41f96c0c8e7164f542b8b8458

Download Submit
memory/748-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/748-12-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/748-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/748-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/748-13-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/748-0-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/748-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4160-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4160-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4160-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4160-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4492-9-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download
memory/4492-17-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download
memory/4492-18-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads