tofsee | 6670134716742f25ab7cfdb33b8c7f0bf13b7d1e91e7874dc20453e4db6ac5d2

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 08:36

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General

Target
f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe
Size 14.7MB
Sample240419-khwtcsdh5t
SHA256 6670134716742f25ab7cfdb33b8c7f0bf13b7d1e91e7874dc20453e4db6ac5d2
MD5 f9ec5ae920b6df2fdc1fc070bd598b1a
SHA1 798a610c2aa02e0f0b58920a72febd23cae00f64
SHA512 73976041df720c3dac6fbc9c78bed41ab1ca9e18ffde3c0f4ad8d3e042a02a0b3e2568a1dbca8a6d86ece2ba0a683876af5ca11f9cdd656364c09b450790a6a7
SSDEEP 98304:ONWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllll7:cW
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7
lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4848	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\lhsqlpc\ImagePath = "C:\\Windows\\SysWOW64\\lhsqlpc\\lhzzwlky.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-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	lhzzwlky.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4024 set thread context of 2208	4024	lhzzwlky.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1656	sc.exe
3252	sc.exe
4676	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 1720	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	87
PID 2724 wrote to memory of 1720	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	87
PID 2724 wrote to memory of 1720	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	87
PID 2724 wrote to memory of 2824	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	89
PID 2724 wrote to memory of 2824	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	89
PID 2724 wrote to memory of 2824	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	89
PID 2724 wrote to memory of 1656	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	92
PID 2724 wrote to memory of 1656	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	92
PID 2724 wrote to memory of 1656	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	92
PID 2724 wrote to memory of 3252	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	94
PID 2724 wrote to memory of 3252	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	94
PID 2724 wrote to memory of 3252	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	94
PID 2724 wrote to memory of 4676	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	96
PID 2724 wrote to memory of 4676	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	96
PID 2724 wrote to memory of 4676	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	96
PID 2724 wrote to memory of 4848	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	99
PID 2724 wrote to memory of 4848	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	99
PID 2724 wrote to memory of 4848	2724	f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe	99
PID 4024 wrote to memory of 2208	4024	lhzzwlky.exe	101
PID 4024 wrote to memory of 2208	4024	lhzzwlky.exe	101
PID 4024 wrote to memory of 2208	4024	lhzzwlky.exe	101
PID 4024 wrote to memory of 2208	4024	lhzzwlky.exe	101
PID 4024 wrote to memory of 2208	4024	lhzzwlky.exe	101

C:\Users\Admin\AppData\Local\Temp\f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lhsqlpc\
  2⤵
  PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lhzzwlky.exe" C:\Windows\SysWOW64\lhsqlpc\
  2⤵
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lhsqlpc binPath= "C:\Windows\SysWOW64\lhsqlpc\lhzzwlky.exe /d\"C:\Users\Admin\AppData\Local\Temp\f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lhsqlpc "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:3252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lhsqlpc
  2⤵
  - Launches sc.exe
  PID:4676
- 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
  PID:4848

C:\Windows\SysWOW64\lhsqlpc\lhzzwlky.exe
C:\Windows\SysWOW64\lhsqlpc\lhzzwlky.exe /d"C:\Users\Admin\AppData\Local\Temp\f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

lhzzwlky.exe

Path C:\Users\Admin\AppData\Local\Temp\lhzzwlky.exe
Size 10.0MB
SHA256 e5b180c5178399886687232046b24f70ebd88ce1d5769ad02672f2048c906cb9
MD5 3b5bb14d7c307d31e6105e0dcff70eed
SHA1 5e3c0d3b3ab373ee36d4d437ae3e8790d2b597dc
SHA512 1d61c900880848415b13c55a0ee6063de514603c217b21e2d29e4867ee3d81b87e23cb8ebb604b89252c15080b4bef29d302cc1a73efb8e47eae9e40df2b6b87
SSDEEP 98304:xNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllh:HW
MD5 SHA1 SHA512 SSDEEP

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memory/2208-18-0x0000000000C20000-0x0000000000C35000-memory.dmp

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memory/2208-11-0x0000000000C20000-0x0000000000C35000-memory.dmp

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memory/2208-15-0x0000000000C20000-0x0000000000C35000-memory.dmp

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memory/2208-19-0x0000000000C20000-0x0000000000C35000-memory.dmp

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memory/2208-17-0x0000000000C20000-0x0000000000C35000-memory.dmp

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memory/2724-2-0x0000000005410000-0x0000000005423000-memory.dmp

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memory/2724-4-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2724-6-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/2724-8-0x0000000005410000-0x0000000005423000-memory.dmp

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memory/2724-1-0x00000000036E0000-0x00000000037E0000-memory.dmp

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memory/4024-10-0x0000000003770000-0x0000000003870000-memory.dmp

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memory/4024-14-0x0000000000400000-0x00000000036CD000-memory.dmp

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memory/4024-16-0x0000000000400000-0x00000000036CD000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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