tofsee | c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 06:49

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General

Target

JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe
Size

291KB
MD5

a9b53db0d8fa7e204383d8bb1ea6d8e9
SHA1

38598c9ea697fe0d3f1f4b75c366ea96b533f44a
SHA256

c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339
SHA512

355a1350ca0a097dbcf95b5ab87e5eef69df1e9b491b7d48de0d6ff0c1c3277f94940d06c62a0c67e19110c4d67002800bda85005e48b07de44cb3712ad2ef53
SSDEEP

6144:v1Qkl7WtXbo6dYV04w7Y3YNM9bAkPXWANLd:vCkl7W7dOJw7Y3YNM9bAbELd

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

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\pkzqmfgm = "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
2544	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\pkzqmfgm\ImagePath = "C:\\Windows\\SysWOW64\\pkzqmfgm\\hwxdqbvu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	hwxdqbvu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 1880	2716	hwxdqbvu.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2704	sc.exe
2640	sc.exe
2580	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	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hwxdqbvu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 2812	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	31
PID 816 wrote to memory of 2812	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	31
PID 816 wrote to memory of 2812	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	31
PID 816 wrote to memory of 2812	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	31
PID 816 wrote to memory of 2668	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	33
PID 816 wrote to memory of 2668	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	33
PID 816 wrote to memory of 2668	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	33
PID 816 wrote to memory of 2668	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	33
PID 816 wrote to memory of 2704	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	35
PID 816 wrote to memory of 2704	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	35
PID 816 wrote to memory of 2704	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	35
PID 816 wrote to memory of 2704	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	35
PID 816 wrote to memory of 2640	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	37
PID 816 wrote to memory of 2640	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	37
PID 816 wrote to memory of 2640	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	37
PID 816 wrote to memory of 2640	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	37
PID 816 wrote to memory of 2580	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	39
PID 816 wrote to memory of 2580	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	39
PID 816 wrote to memory of 2580	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	39
PID 816 wrote to memory of 2580	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	39
PID 816 wrote to memory of 2544	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	42
PID 816 wrote to memory of 2544	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	42
PID 816 wrote to memory of 2544	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	42
PID 816 wrote to memory of 2544	816	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	42
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44
PID 2716 wrote to memory of 1880	2716	hwxdqbvu.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pkzqmfgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hwxdqbvu.exe" C:\Windows\SysWOW64\pkzqmfgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pkzqmfgm binPath= "C:\Windows\SysWOW64\pkzqmfgm\hwxdqbvu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pkzqmfgm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pkzqmfgm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- 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:2544

C:\Windows\SysWOW64\pkzqmfgm\hwxdqbvu.exe
C:\Windows\SysWOW64\pkzqmfgm\hwxdqbvu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- 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:1880

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\hwxdqbvu.exe

Filesize
12.1MB

MD5
a48d38e50f956da946b9012d76bbd4f1

SHA1
18f86d015086f0fab66fe471e75bcb2b5468ff98

SHA256
8d7e52ca11a4cde668ae9849243edc3f13052d55f3ffd8c5c950346149623e6d

SHA512
0a4227f265dce12ea2063fe811a8baa326844d672521981fcc5de8181fbcbbe53c6f8007d878edbc39a8d0afac7475c7627fa33fefaeb4a110928055024c8192

Download Submit
memory/816-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/816-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/816-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/816-7-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/816-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/816-1-0x0000000000D30000-0x0000000000E30000-memory.dmp

Filesize
1024KB

Download
memory/1880-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1880-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1880-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1880-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1880-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads