tofsee | bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 21:41

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General

Target

JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe
Size

233KB
MD5

d8961898d3975db92f158c4ff70fff57
SHA1

591f965bbb3222b40daff85fd859fb6844ded151
SHA256

bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048
SHA512

4e31f4c36680bfcaec5a1d036592c92581be9c70a08a9a285755daa2319ca9f38911176f151ed51f347b4dd9b9fb5159385540ac02d3fa4d358a4d85467cb9a2
SSDEEP

6144:4c8ikuMSSqBZbH7HOBPyIyf44V+qrLQTl+0i23GUZ:4c8ikvSvZbHTMkdV+yLQBiaG8

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\wgrvkcjr = "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
2764	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\wgrvkcjr\ImagePath = "C:\\Windows\\SysWOW64\\wgrvkcjr\\kngomowg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	kngomowg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2884	2852	kngomowg.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
3028	sc.exe
2804	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kngomowg.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2856	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	29
PID 2220 wrote to memory of 2856	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	29
PID 2220 wrote to memory of 2856	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	29
PID 2220 wrote to memory of 2856	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	29
PID 2220 wrote to memory of 2988	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	31
PID 2220 wrote to memory of 2988	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	31
PID 2220 wrote to memory of 2988	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	31
PID 2220 wrote to memory of 2988	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	31
PID 2220 wrote to memory of 2724	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	33
PID 2220 wrote to memory of 2724	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	33
PID 2220 wrote to memory of 2724	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	33
PID 2220 wrote to memory of 2724	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	33
PID 2220 wrote to memory of 3028	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	35
PID 2220 wrote to memory of 3028	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	35
PID 2220 wrote to memory of 3028	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	35
PID 2220 wrote to memory of 3028	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	35
PID 2220 wrote to memory of 2804	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	37
PID 2220 wrote to memory of 2804	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	37
PID 2220 wrote to memory of 2804	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	37
PID 2220 wrote to memory of 2804	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	37
PID 2220 wrote to memory of 2764	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	40
PID 2220 wrote to memory of 2764	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	40
PID 2220 wrote to memory of 2764	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	40
PID 2220 wrote to memory of 2764	2220	JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe	40
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42
PID 2852 wrote to memory of 2884	2852	kngomowg.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgrvkcjr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kngomowg.exe" C:\Windows\SysWOW64\wgrvkcjr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wgrvkcjr binPath= "C:\Windows\SysWOW64\wgrvkcjr\kngomowg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wgrvkcjr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wgrvkcjr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- 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:2764

C:\Windows\SysWOW64\wgrvkcjr\kngomowg.exe
C:\Windows\SysWOW64\wgrvkcjr\kngomowg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb24d12fa50e680ede3fc873bbec9b08ff9f855c9f66f1fe404e41ecbc5cc048.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2884

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\kngomowg.exe

Filesize
10.7MB

MD5
4d4d95fd1ae35bdc1a400b00b5de0933

SHA1
bf3eb21fdc2d7831304ef9bb6d807b207a253a7a

SHA256
c32a64d541940ceaec447ded55838441fd355f59d3039544c916942435ba1344

SHA512
673910519b914181bae20b5d5886e7854b54b381c14478672587816a75d4b8ff1f1095a4ae8bb613a9532cbb7d9763465b4479151ed6652092ae2b1649fa8f9b

Download Submit
memory/2220-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2220-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2220-7-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2220-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2852-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2884-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2884-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2884-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2884-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads