tofsee | 497cea8cac5265aef404f4eac2ba589787247bb04f1178fc36624821193fda93

General

Target

JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe
Size

12.1MB
MD5

b748e066d0a89f22c611ce3eab03af43
SHA1

2ec3cb32f7b3c3e5ba900f84f5782fd4922bdb93
SHA256

497cea8cac5265aef404f4eac2ba589787247bb04f1178fc36624821193fda93
SHA512

ca911c42b594b39ae3b2d0fed415b875ea427f39b862092419fe114375eb649c4677c17e2f6646158a7268977c459abf994254929aaf756b7ae46d01bb63ec22
SSDEEP

49152:P1m333333333333333333333333333333333333333333333333333333333333H:

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
2924	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\jatfvnte\ImagePath = "C:\\Windows\\SysWOW64\\jatfvnte\\npjyuqmd.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe

Deletes itself 1 IoCs

pid	Process
4004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4968	npjyuqmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4968 set thread context of 4004	4968	npjyuqmd.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2444	sc.exe
1432	sc.exe
1692	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
3256	2012	WerFault.exe	82
3236	4968	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	npjyuqmd.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	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 4924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	83
PID 2012 wrote to memory of 4924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	83
PID 2012 wrote to memory of 4924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	83
PID 2012 wrote to memory of 3588	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	85
PID 2012 wrote to memory of 3588	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	85
PID 2012 wrote to memory of 3588	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	85
PID 2012 wrote to memory of 2444	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	87
PID 2012 wrote to memory of 2444	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	87
PID 2012 wrote to memory of 2444	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	87
PID 2012 wrote to memory of 1432	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	89
PID 2012 wrote to memory of 1432	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	89
PID 2012 wrote to memory of 1432	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	89
PID 2012 wrote to memory of 1692	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	91
PID 2012 wrote to memory of 1692	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	91
PID 2012 wrote to memory of 1692	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	91
PID 2012 wrote to memory of 2924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	94
PID 2012 wrote to memory of 2924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	94
PID 2012 wrote to memory of 2924	2012	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	94
PID 4968 wrote to memory of 4004	4968	npjyuqmd.exe	100
PID 4968 wrote to memory of 4004	4968	npjyuqmd.exe	100
PID 4968 wrote to memory of 4004	4968	npjyuqmd.exe	100
PID 4968 wrote to memory of 4004	4968	npjyuqmd.exe	100
PID 4968 wrote to memory of 4004	4968	npjyuqmd.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jatfvnte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npjyuqmd.exe" C:\Windows\SysWOW64\jatfvnte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jatfvnte binPath= "C:\Windows\SysWOW64\jatfvnte\npjyuqmd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jatfvnte "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jatfvnte
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- 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:2924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 1052
  2⤵
  - Program crash
  PID:3256

C:\Windows\SysWOW64\jatfvnte\npjyuqmd.exe
C:\Windows\SysWOW64\jatfvnte\npjyuqmd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 516
  2⤵
  - Program crash
  PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2012 -ip 2012
1⤵
PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4968 -ip 4968
1⤵
PID:3076

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\npjyuqmd.exe

Filesize
10.0MB

MD5
ac627a200a530fd789ea9c0636672a0e

SHA1
951a2452750b2d4ed08b5473b3d9625010bfe4a4

SHA256
01bfda84c6a7fb66aec40e85e2fe052ea01a68bd3bf4d34c9ceebee4d1cce36f

SHA512
47109bc4a20833b8fa37d006e177625f42c6d1550e49ca59c4499f195e9e1564a3bbd30714b83f11e06aed2ab7e96410ecc47812452ed3d17f69dd46f41fa28c

Download Submit
memory/2012-1-0x00000000019C0000-0x0000000001AC0000-memory.dmp

Filesize
1024KB

Download
memory/2012-2-0x0000000001960000-0x0000000001973000-memory.dmp

Filesize
76KB

Download
memory/2012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-9-0x0000000001960000-0x0000000001973000-memory.dmp

Filesize
76KB

Download
memory/2012-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/4004-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/4004-13-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/4004-15-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/4968-14-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/4968-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads