tofsee | b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 07:18

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General

Target

JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe
Size

187KB
MD5

be6f567dda80049643af2663e424738a
SHA1

9edb7aadb0c618f47a9a41ea08fc3e84be85969b
SHA256

b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a
SHA512

67ab92315ef0aae0903027c272c5c50418a15cd747de49a599444120ad86366ba4e870098a4d1a1f35f41b9a7897f3d6986ae85e965eb0d3514fc71dd58b740c
SSDEEP

3072:j7GjEiHnGPtAA/7Lc5nXn7I9bfBopMTcDcCgjopZa9uD6Vdyhkp:oEiHnGPTzLcVOBgKVcwVf

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\ttjpmgvs = "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
2608	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\ttjpmgvs\ImagePath = "C:\\Windows\\SysWOW64\\ttjpmgvs\\gicrnjfw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	gicrnjfw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 2616	2728	gicrnjfw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2264	sc.exe
2592	sc.exe
2748	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_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.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	gicrnjfw.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	31
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	31
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	31
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	31
PID 2308 wrote to memory of 2808	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	33
PID 2308 wrote to memory of 2808	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	33
PID 2308 wrote to memory of 2808	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	33
PID 2308 wrote to memory of 2808	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	33
PID 2308 wrote to memory of 2264	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	35
PID 2308 wrote to memory of 2264	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	35
PID 2308 wrote to memory of 2264	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	35
PID 2308 wrote to memory of 2264	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	35
PID 2308 wrote to memory of 2592	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	37
PID 2308 wrote to memory of 2592	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	37
PID 2308 wrote to memory of 2592	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	37
PID 2308 wrote to memory of 2592	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	37
PID 2308 wrote to memory of 2748	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	39
PID 2308 wrote to memory of 2748	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	39
PID 2308 wrote to memory of 2748	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	39
PID 2308 wrote to memory of 2748	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	39
PID 2308 wrote to memory of 2608	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	42
PID 2308 wrote to memory of 2608	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	42
PID 2308 wrote to memory of 2608	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	42
PID 2308 wrote to memory of 2608	2308	JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe	42
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44
PID 2728 wrote to memory of 2616	2728	gicrnjfw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ttjpmgvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gicrnjfw.exe" C:\Windows\SysWOW64\ttjpmgvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ttjpmgvs binPath= "C:\Windows\SysWOW64\ttjpmgvs\gicrnjfw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ttjpmgvs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ttjpmgvs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2608

C:\Windows\SysWOW64\ttjpmgvs\gicrnjfw.exe
C:\Windows\SysWOW64\ttjpmgvs\gicrnjfw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d49955cd044928d499e29bb44d312e307c40c0d6915827b7adb5f1a6baf24a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- 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:2616

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\gicrnjfw.exe

Filesize
12.7MB

MD5
78d68b79cf02c541049aeefc2a0b1e65

SHA1
cae55d2e4cdd752e7b0011a11b3276bc5e9ac03b

SHA256
85d67e61b280a02e82c0f3a140ceff9445648e722a7af97755e7ea4802ae7018

SHA512
ce37dfd3a33b16995fa960a5bcb715e5a06f1985e7812a4212710aec9e289bd48699a0176e7c188f5259c0fa1ec5c90af1e497a40976fbeb1860ea8f5224c43f

Download Submit
memory/2308-7-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/2308-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-1-0x0000000000280000-0x0000000000293000-memory.dmp

Filesize
76KB

Download
memory/2308-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-8-0x0000000000280000-0x0000000000293000-memory.dmp

Filesize
76KB

Download
memory/2308-0-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/2308-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2616-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2616-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2616-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2728-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads