tofsee | e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b

General

Target

JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe
Size

185KB
MD5

d27b2ce9b4ed5d0a7451ef9e8d099aaf
SHA1

bc45234704d9ee0b4c7aee62252bd3e2fc1f93ac
SHA256

e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b
SHA512

3845388ef1ef7afc26885461ec312247507195e8f8c5a4d918bb66bf90bc9bac774edb36ce93a9d9e01f05eb293e82681403f71050bdcd84effd55990224accd
SSDEEP

3072:27nDIxHSknMqtvpOc/6isHRrIcSzAhHr1PFTGa7Q6uBbVggjcGkNIVqIF:0IxykNpOcivxrzVhHD707ITsq

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
3792	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\svucswxm\ImagePath = "C:\\Windows\\SysWOW64\\svucswxm\\sxhxlq.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe

Deletes itself 1 IoCs

pid	Process
1236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1428	sxhxlq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1428 set thread context of 1236	1428	sxhxlq.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3488	sc.exe
548	sc.exe
1588	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
5032	2024	WerFault.exe	82
1584	1428	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	cmd.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	sxhxlq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.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 2024 wrote to memory of 4004	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	83
PID 2024 wrote to memory of 4004	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	83
PID 2024 wrote to memory of 4004	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	83
PID 2024 wrote to memory of 3988	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	85
PID 2024 wrote to memory of 3988	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	85
PID 2024 wrote to memory of 3988	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	85
PID 2024 wrote to memory of 3488	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	87
PID 2024 wrote to memory of 3488	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	87
PID 2024 wrote to memory of 3488	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	87
PID 2024 wrote to memory of 548	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	89
PID 2024 wrote to memory of 548	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	89
PID 2024 wrote to memory of 548	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	89
PID 2024 wrote to memory of 1588	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	91
PID 2024 wrote to memory of 1588	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	91
PID 2024 wrote to memory of 1588	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	91
PID 2024 wrote to memory of 3792	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	94
PID 2024 wrote to memory of 3792	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	94
PID 2024 wrote to memory of 3792	2024	JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe	94
PID 1428 wrote to memory of 1236	1428	sxhxlq.exe	100
PID 1428 wrote to memory of 1236	1428	sxhxlq.exe	100
PID 1428 wrote to memory of 1236	1428	sxhxlq.exe	100
PID 1428 wrote to memory of 1236	1428	sxhxlq.exe	100
PID 1428 wrote to memory of 1236	1428	sxhxlq.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\svucswxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxhxlq.exe" C:\Windows\SysWOW64\svucswxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create svucswxm binPath= "C:\Windows\SysWOW64\svucswxm\sxhxlq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description svucswxm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start svucswxm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1588
- 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:3792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 1256
  2⤵
  - Program crash
  PID:5032

C:\Windows\SysWOW64\svucswxm\sxhxlq.exe
C:\Windows\SysWOW64\svucswxm\sxhxlq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8cd082dad812bd35b097e5af74fe682a4f25b0a22d2aec37b76f5949c31f44b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 532
  2⤵
  - Program crash
  PID:1584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2024 -ip 2024
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1428 -ip 1428
1⤵
PID:4780

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\sxhxlq.exe

Filesize
14.4MB

MD5
4e7176a38174bbae64e9a50742992ef0

SHA1
4f0cae037da6c8f4765e081d00acf6c0bfafbc85

SHA256
012a119a1141dee02c6e1b4f9f72661fa1042d34ab48822cadfe65a811ec5832

SHA512
add461acbb5a39ac39c8d8b25476a8998b01dd0e1643bd2d25ddf688e36b59dbdcd68a34965ac9ceb1f9a59f72eef533061e65aab6208510114132a0f186b0e4

Download Submit
memory/1236-14-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/1236-12-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/1236-15-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/1428-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1428-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1428-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2024-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2024-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-8-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2024-7-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2024-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2024-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads