tofsee | a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 23:44

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General

Target

JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe
Size

161KB
MD5

57369a2964bae1145d8e60e93cb03a09
SHA1

136acbf24badc0f85b19d262349a062d517a30d6
SHA256

a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc
SHA512

64e3bf8c255f959f7460a69f23372f5d37f4d8e31f5a097e58a11e415785cbaba97587d405b4ecd21c3b6dab88617f84b20ca2788c3dd6ca4bd15acaf7a8fd9a
SSDEEP

3072:4lNGUja6WGK67WLy7jMx5UI+lMMVUB6shv1sH:MGUdWGK6S7UkMVUB3

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\bisgbat = "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
3068	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\bisgbat\ImagePath = "C:\\Windows\\SysWOW64\\bisgbat\\qwrudmmh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3008	qwrudmmh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 2804	3008	qwrudmmh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2808	sc.exe
2944	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.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
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	qwrudmmh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2624	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	30
PID 3064 wrote to memory of 2624	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	30
PID 3064 wrote to memory of 2624	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	30
PID 3064 wrote to memory of 2624	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	30
PID 3064 wrote to memory of 2332	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	32
PID 3064 wrote to memory of 2332	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	32
PID 3064 wrote to memory of 2332	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	32
PID 3064 wrote to memory of 2332	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	32
PID 3064 wrote to memory of 2884	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	34
PID 3064 wrote to memory of 2884	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	34
PID 3064 wrote to memory of 2884	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	34
PID 3064 wrote to memory of 2884	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	34
PID 3064 wrote to memory of 2808	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	36
PID 3064 wrote to memory of 2808	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	36
PID 3064 wrote to memory of 2808	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	36
PID 3064 wrote to memory of 2808	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	36
PID 3064 wrote to memory of 2944	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	38
PID 3064 wrote to memory of 2944	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	38
PID 3064 wrote to memory of 2944	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	38
PID 3064 wrote to memory of 2944	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	38
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3008 wrote to memory of 2804	3008	qwrudmmh.exe	41
PID 3064 wrote to memory of 3068	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	42
PID 3064 wrote to memory of 3068	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	42
PID 3064 wrote to memory of 3068	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	42
PID 3064 wrote to memory of 3068	3064	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bisgbat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qwrudmmh.exe" C:\Windows\SysWOW64\bisgbat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bisgbat binPath= "C:\Windows\SysWOW64\bisgbat\qwrudmmh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bisgbat "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bisgbat
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- 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:3068

C:\Windows\SysWOW64\bisgbat\qwrudmmh.exe
C:\Windows\SysWOW64\bisgbat\qwrudmmh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- 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:2804

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\qwrudmmh.exe

Filesize
12.6MB

MD5
04dc91af70d68f3f3481ea226ce8ac8d

SHA1
49621da6494e10ea2b9ac08dd2efd8a44df08b53

SHA256
0d2bd05b5b38faa6aa44796029754ba027f84d48204f337f648b70520d23a9cd

SHA512
13a6e7ad9879023d8f3c731886473b6b75c999c162542e93d8d7c463d383008a4444d5a28886081e82d45926fa8fe484ddf33b0321518cc60b96930da2082bf3

Download Submit
memory/2804-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-11-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3064-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-1-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/3064-0-0x00000000003A0000-0x00000000003AD000-memory.dmp

Filesize
52KB

Download
memory/3064-12-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/3064-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-14-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/3064-13-0x00000000003A0000-0x00000000003AD000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads