tofsee | 255f7c2f55efdb1e69fabbad4a24d8156c7d66964c6b1257a08bf76d241fa33f

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 00:47

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General

Target

80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe
Size

13.6MB
MD5

80e345d808b560e868c6644e64eeb241
SHA1

c9eeb020e47b0e3afadaf06a0216e1bfeb4a9e36
SHA256

255f7c2f55efdb1e69fabbad4a24d8156c7d66964c6b1257a08bf76d241fa33f
SHA512

6304515800e9e9a662399dea3cb99ce67fb950408d3ba1a3c826978f2f2c6ac0118db24a4cfd3e9169f598c1fe033e8eb470c747edf7eaab42db5750ca2d3bf1
SSDEEP

98304:fJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ9:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation 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
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\oqfmiknb = "0"	svchost.exe

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
2612	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\oqfmiknb\ImagePath = "C:\\Windows\\SysWOW64\\oqfmiknb\\yplsjimq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	yplsjimq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2636	2788	yplsjimq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2752	sc.exe
2784	sc.exe
2964	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yplsjimq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2892	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	31
PID 2100 wrote to memory of 2892	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	31
PID 2100 wrote to memory of 2892	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	31
PID 2100 wrote to memory of 2892	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	31
PID 2100 wrote to memory of 2124	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	33
PID 2100 wrote to memory of 2124	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	33
PID 2100 wrote to memory of 2124	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	33
PID 2100 wrote to memory of 2124	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	33
PID 2100 wrote to memory of 2752	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	35
PID 2100 wrote to memory of 2752	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	35
PID 2100 wrote to memory of 2752	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	35
PID 2100 wrote to memory of 2752	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	35
PID 2100 wrote to memory of 2784	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	37
PID 2100 wrote to memory of 2784	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	37
PID 2100 wrote to memory of 2784	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	37
PID 2100 wrote to memory of 2784	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	37
PID 2100 wrote to memory of 2964	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	39
PID 2100 wrote to memory of 2964	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	39
PID 2100 wrote to memory of 2964	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	39
PID 2100 wrote to memory of 2964	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	39
PID 2100 wrote to memory of 2612	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	42
PID 2100 wrote to memory of 2612	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	42
PID 2100 wrote to memory of 2612	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	42
PID 2100 wrote to memory of 2612	2100	80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe	42
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43
PID 2788 wrote to memory of 2636	2788	yplsjimq.exe	43

C:\Users\Admin\AppData\Local\Temp\80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oqfmiknb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yplsjimq.exe" C:\Windows\SysWOW64\oqfmiknb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oqfmiknb binPath= "C:\Windows\SysWOW64\oqfmiknb\yplsjimq.exe /d\"C:\Users\Admin\AppData\Local\Temp\80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oqfmiknb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oqfmiknb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- 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:2612

C:\Windows\SysWOW64\oqfmiknb\yplsjimq.exe
C:\Windows\SysWOW64\oqfmiknb\yplsjimq.exe /d"C:\Users\Admin\AppData\Local\Temp\80e345d808b560e868c6644e64eeb241_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\yplsjimq.exe

Filesize
11.6MB

MD5
d0bf64380db335d75f65d5810c4f0677

SHA1
ab530b72867681855f89e8feef32b4a20c8af254

SHA256
c211f1c32207a663af7f90123f4071a3445ec4eee907b17519079ce1293bc615

SHA512
610cef665b7214f9642b22396f2a9c1b215e96ef2cb49024d4b8d9e27097db0b6494b1e134dcbc9b1bacc3e3f972382387a958258d85f01e22f19c85b281110e

Download Submit
memory/2100-12-0x0000000000400000-0x00000000040F2000-memory.dmp

Filesize
60.9MB

Download
memory/2100-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2100-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-14-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2100-1-0x00000000041E0000-0x00000000042E0000-memory.dmp

Filesize
1024KB

Download
memory/2636-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2636-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2636-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2636-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2788-16-0x0000000000400000-0x00000000040F2000-memory.dmp

Filesize
60.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads