tofsee | 7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450

General

Target

JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
Size

246KB
MD5

6f2595014bbd2fb3f6de3fdb184968d6
SHA1

53705987535819160dc864ed2240e2487aed2190
SHA256

7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450
SHA512

1d5edc9396d7517ead04a38b0cf6e7876981fe0b10ab77f6f75c9e2f97e69287efd95502b1a51e173bf9e334cb4c691d3f2142fb5a637f7404bd376d859d243c
SSDEEP

3072:d0XadBu5EiGfz/h+8tGTSBROksxkgaBChYasG0d:NiWp3GXigaQsG0

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

ovicrush.cn

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
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
4188	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\jndcuvmz\ImagePath = "C:\\Windows\\SysWOW64\\jndcuvmz\\gojhfupe.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe

Deletes itself 1 IoCs

pid	Process
4492	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
740	gojhfupe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 4492	740	gojhfupe.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3348	sc.exe
4084	sc.exe
4504	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3752	4564	WerFault.exe	81
2872	740	WerFault.exe	92

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	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	gojhfupe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4248	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	82
PID 4564 wrote to memory of 4248	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	82
PID 4564 wrote to memory of 4248	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	82
PID 4564 wrote to memory of 1816	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	84
PID 4564 wrote to memory of 1816	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	84
PID 4564 wrote to memory of 1816	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	84
PID 4564 wrote to memory of 4084	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	86
PID 4564 wrote to memory of 4084	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	86
PID 4564 wrote to memory of 4084	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	86
PID 4564 wrote to memory of 4504	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	88
PID 4564 wrote to memory of 4504	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	88
PID 4564 wrote to memory of 4504	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	88
PID 4564 wrote to memory of 3348	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	90
PID 4564 wrote to memory of 3348	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	90
PID 4564 wrote to memory of 3348	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	90
PID 4564 wrote to memory of 4188	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	93
PID 4564 wrote to memory of 4188	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	93
PID 4564 wrote to memory of 4188	4564	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	93
PID 740 wrote to memory of 4492	740	gojhfupe.exe	98
PID 740 wrote to memory of 4492	740	gojhfupe.exe	98
PID 740 wrote to memory of 4492	740	gojhfupe.exe	98
PID 740 wrote to memory of 4492	740	gojhfupe.exe	98
PID 740 wrote to memory of 4492	740	gojhfupe.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jndcuvmz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gojhfupe.exe" C:\Windows\SysWOW64\jndcuvmz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jndcuvmz binPath= "C:\Windows\SysWOW64\jndcuvmz\gojhfupe.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jndcuvmz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jndcuvmz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3348
- 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:4188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 1044
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\jndcuvmz\gojhfupe.exe
C:\Windows\SysWOW64\jndcuvmz\gojhfupe.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 520
  2⤵
  - Program crash
  PID:2872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4564 -ip 4564
1⤵
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 740 -ip 740
1⤵
PID:4384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.2MB

MD5
f0e8c2ad5dd9767d506d4abc1cad0ccc

SHA1
4bf5eef68f48a5589e3ea3d59ebb312030f1a90d

SHA256
c6e9c7cd3fca2ef0ef085d150ed7cff9543588783c0c10b69770730796eb2d58

SHA512
e82605eab8c334484c00a79e69e781778215be846e23c1eebe3b25bb40bf8a456c4a2b3443cc97f59eb12d06950b3735fbcec5327ccebf1e730d73b49fdd7f4f

Download Submit
memory/740-14-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4492-10-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4492-12-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4492-13-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/4564-0-0x00000000007C0000-0x00000000007CD000-memory.dmp

Filesize
52KB

Download
memory/4564-1-0x00000000007D0000-0x00000000007E3000-memory.dmp

Filesize
76KB

Download
memory/4564-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-6-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-8-0x00000000007D0000-0x00000000007E3000-memory.dmp

Filesize
76KB

Download
memory/4564-7-0x00000000007C0000-0x00000000007CD000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads