tofsee | 8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30

General

Target

JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe
Size

319KB
MD5

12ba89f5ac89a6addcd1f15b1c16af05
SHA1

a8e8095cb2e1fe8333e86c6315703c56c76f5600
SHA256

8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30
SHA512

4c950848fc6af3f2854da5856717c7f150222378547962f91e9a61c6c7fc91eecae9bb12c53b36581fc99fb15edc10add4d205ec367c4a2e6a26bee2d1f8d4d4
SSDEEP

3072:Uxyir0spfxtTM/B0OgS7NHfzlngAq0zSRytHb6GG+OX9qqyMg3VkPyiRXQi5bFs2:O1tSTgS7xLBTbzyytH22OtZyZ3ViRXc

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
2444	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\slkykwmg\ImagePath = "C:\\Windows\\SysWOW64\\slkykwmg\\zbvkgcyp.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_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe

Deletes itself 1 IoCs

pid	Process
4784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
932	zbvkgcyp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 932 set thread context of 4784	932	zbvkgcyp.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4452	sc.exe
1364	sc.exe
1272	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
2732	4488	WerFault.exe	81
4984	932	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbvkgcyp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.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 4488 wrote to memory of 2512	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	82
PID 4488 wrote to memory of 2512	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	82
PID 4488 wrote to memory of 2512	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	82
PID 4488 wrote to memory of 1028	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	84
PID 4488 wrote to memory of 1028	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	84
PID 4488 wrote to memory of 1028	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	84
PID 4488 wrote to memory of 4452	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	86
PID 4488 wrote to memory of 4452	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	86
PID 4488 wrote to memory of 4452	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	86
PID 4488 wrote to memory of 1364	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	88
PID 4488 wrote to memory of 1364	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	88
PID 4488 wrote to memory of 1364	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	88
PID 4488 wrote to memory of 1272	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	90
PID 4488 wrote to memory of 1272	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	90
PID 4488 wrote to memory of 1272	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	90
PID 4488 wrote to memory of 2444	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	93
PID 4488 wrote to memory of 2444	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	93
PID 4488 wrote to memory of 2444	4488	JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe	93
PID 932 wrote to memory of 4784	932	zbvkgcyp.exe	98
PID 932 wrote to memory of 4784	932	zbvkgcyp.exe	98
PID 932 wrote to memory of 4784	932	zbvkgcyp.exe	98
PID 932 wrote to memory of 4784	932	zbvkgcyp.exe	98
PID 932 wrote to memory of 4784	932	zbvkgcyp.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\slkykwmg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbvkgcyp.exe" C:\Windows\SysWOW64\slkykwmg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create slkykwmg binPath= "C:\Windows\SysWOW64\slkykwmg\zbvkgcyp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description slkykwmg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start slkykwmg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1272
- 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:2444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 668
  2⤵
  - Program crash
  PID:2732

C:\Windows\SysWOW64\slkykwmg\zbvkgcyp.exe
C:\Windows\SysWOW64\slkykwmg\zbvkgcyp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:932
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 932 -s 512
  2⤵
  - Program crash
  PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4488 -ip 4488
1⤵
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 932 -ip 932
1⤵
PID:732

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\zbvkgcyp.exe

Filesize
12.2MB

MD5
ffb8bfcebbdc3bde8f81a53671ebe63f

SHA1
33172b09ec0f4b8031c30edee0be644c35859a7b

SHA256
e5f286ec323b4d7338bbf0d0f6174f308a30e98280c71921691c047a9ec60ff4

SHA512
01329650be3482d538ae7d0dcb7a55c5ba2db606c92ea1b803e5c4ea03e6678d3f88f0ce0ba143c90d29da598a166a8caebcbfd9dc2879e121c5210e2a411861

Download Submit
memory/932-15-0x0000000000400000-0x0000000002B48000-memory.dmp

Filesize
39.3MB

Download
memory/4488-1-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

Filesize
1024KB

Download
memory/4488-2-0x0000000002D00000-0x0000000002D13000-memory.dmp

Filesize
76KB

Download
memory/4488-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4488-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4488-8-0x0000000002D00000-0x0000000002D13000-memory.dmp

Filesize
76KB

Download
memory/4488-7-0x0000000000400000-0x0000000002B48000-memory.dmp

Filesize
39.3MB

Download
memory/4784-11-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/4784-13-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/4784-14-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads