tofsee | 3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa

General

Target

JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe
Size

177KB
MD5

a3aabdff3b4a3399c1829aee537c0beb
SHA1

10eecc1051a96d49e0de197cd18d50f96e3ea8cb
SHA256

3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa
SHA512

fcf179521467be64b64a8a6e5cf709c4e27edcc0e7cc6400e94d6e0feaef0a85c3913767462bfce12ecf4ab52539de41550e6d7558974a021011c658a6547cbb
SSDEEP

3072:o7Gc4zi7lBoiYCKegOfPS1ece1WHY2IDoN44oa+EAF:1zi7lBoFXVcPS1ecn42TN4ra+EAF

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
2192	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\zfangkbw\ImagePath = "C:\\Windows\\SysWOW64\\zfangkbw\\askrqhsz.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_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe

Deletes itself 1 IoCs

pid	Process
1208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3440	askrqhsz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3440 set thread context of 1208	3440	askrqhsz.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3448	sc.exe
1392	sc.exe
3572	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
1644	1960	WerFault.exe	82
2924	3440	WerFault.exe	94

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_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.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	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	askrqhsz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 4352	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	83
PID 1960 wrote to memory of 4352	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	83
PID 1960 wrote to memory of 4352	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	83
PID 1960 wrote to memory of 1612	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	85
PID 1960 wrote to memory of 1612	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	85
PID 1960 wrote to memory of 1612	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	85
PID 1960 wrote to memory of 1392	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	87
PID 1960 wrote to memory of 1392	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	87
PID 1960 wrote to memory of 1392	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	87
PID 1960 wrote to memory of 3572	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	89
PID 1960 wrote to memory of 3572	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	89
PID 1960 wrote to memory of 3572	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	89
PID 1960 wrote to memory of 3448	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	92
PID 1960 wrote to memory of 3448	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	92
PID 1960 wrote to memory of 3448	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	92
PID 3440 wrote to memory of 1208	3440	askrqhsz.exe	95
PID 3440 wrote to memory of 1208	3440	askrqhsz.exe	95
PID 3440 wrote to memory of 1208	3440	askrqhsz.exe	95
PID 3440 wrote to memory of 1208	3440	askrqhsz.exe	95
PID 3440 wrote to memory of 1208	3440	askrqhsz.exe	95
PID 1960 wrote to memory of 2192	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	97
PID 1960 wrote to memory of 2192	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	97
PID 1960 wrote to memory of 2192	1960	JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zfangkbw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\askrqhsz.exe" C:\Windows\SysWOW64\zfangkbw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zfangkbw binPath= "C:\Windows\SysWOW64\zfangkbw\askrqhsz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zfangkbw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zfangkbw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3448
- 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:2192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 1036
  2⤵
  - Program crash
  PID:1644

C:\Windows\SysWOW64\zfangkbw\askrqhsz.exe
C:\Windows\SysWOW64\zfangkbw\askrqhsz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3004638c8e9c7e9590c0c1b1286abfbd13f773a195e8a850343e6628be166afa.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 572
  2⤵
  - Program crash
  PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1960 -ip 1960
1⤵
PID:2476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3440 -ip 3440
1⤵
PID:1288

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\askrqhsz.exe

Filesize
12.0MB

MD5
0f48bda3f1ba2d5fb1cbdb81d2ecfe8c

SHA1
61f486050e5b362e2bfba330a3013d61dd16805b

SHA256
cc1bf1ba380d9263b2c0fe43b65b254a640f3a6de9bed54fbf6481a2e7d3e503

SHA512
18e154842dd14e40ca051efad1d0817df1fcc98a1c1a5182de2c01785d155766a23e01b1c75a8a6ac6ffdeeb25c336db124498176e312bbfea57ea83135a2bbc

Download Submit
memory/1208-8-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/1208-11-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/1208-18-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/1208-20-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/1208-19-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/1960-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1960-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1960-0-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/1960-14-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1960-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1960-16-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1960-15-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/3440-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3440-13-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3440-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads