tofsee | 817c64580c9550a7e0cd91965c6397328868a6b13f2b4710de742de213746af2

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 18:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe
Size

14.0MB
MD5

f6688fc48cbe1c59e618a34f42939d97
SHA1

ce93f51dbf4ca4ee41113ef973bc8affaa4cad90
SHA256

817c64580c9550a7e0cd91965c6397328868a6b13f2b4710de742de213746af2
SHA512

49e7a804d3a19aba2703beaa8f5d065c04b8f49ffa478916b9906c6c806d5e85bfbd5e7604d3e0e46a3c1c9585dc304765d503d3967fe0e1ceb5b98c2f9288d8
SSDEEP

49152:CZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ:

Score

10^/10

tofsee evasion persistence 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

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\ggivguja = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2700	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\ggivguja\ImagePath = "C:\\Windows\\SysWOW64\\ggivguja\\yrjfdoc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2608	yrjfdoc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2608 set thread context of 2748	2608	yrjfdoc.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
2704	sc.exe
3048	sc.exe
2560	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2992	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	28
PID 2360 wrote to memory of 2992	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	28
PID 2360 wrote to memory of 2992	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	28
PID 2360 wrote to memory of 2992	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	28
PID 2360 wrote to memory of 3056	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	30
PID 2360 wrote to memory of 3056	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	30
PID 2360 wrote to memory of 3056	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	30
PID 2360 wrote to memory of 3056	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	30
PID 2360 wrote to memory of 3048	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	32
PID 2360 wrote to memory of 3048	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	32
PID 2360 wrote to memory of 3048	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	32
PID 2360 wrote to memory of 3048	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	32
PID 2360 wrote to memory of 2560	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	34
PID 2360 wrote to memory of 2560	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	34
PID 2360 wrote to memory of 2560	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	34
PID 2360 wrote to memory of 2560	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	34
PID 2360 wrote to memory of 2704	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	36
PID 2360 wrote to memory of 2704	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	36
PID 2360 wrote to memory of 2704	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	36
PID 2360 wrote to memory of 2704	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	36
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2608 wrote to memory of 2748	2608	yrjfdoc.exe	39
PID 2360 wrote to memory of 2700	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	40
PID 2360 wrote to memory of 2700	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	40
PID 2360 wrote to memory of 2700	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	40
PID 2360 wrote to memory of 2700	2360	f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe	40

C:\Users\Admin\AppData\Local\Temp\f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ggivguja\
  2⤵
  PID:2992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yrjfdoc.exe" C:\Windows\SysWOW64\ggivguja\
  2⤵
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ggivguja binPath= "C:\Windows\SysWOW64\ggivguja\yrjfdoc.exe /d\"C:\Users\Admin\AppData\Local\Temp\f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:3048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ggivguja "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ggivguja
  2⤵
  - Launches sc.exe
  PID:2704
- 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
  PID:2700

C:\Windows\SysWOW64\ggivguja\yrjfdoc.exe
C:\Windows\SysWOW64\ggivguja\yrjfdoc.exe /d"C:\Users\Admin\AppData\Local\Temp\f6688fc48cbe1c59e618a34f42939d97_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.7MB

MD5
f830eb7215de4698987895497d307628

SHA1
a9676b86ece39babe86b298bf54bd2a57457d4e2

SHA256
f4f11084761608cd5480049a80d4f501fdfa7f67044fc947473fd62971d1bd1b

SHA512
a98ce78406c6f05b182ffe7dbc1eaf781afb5678379b456632372abec9cb8690eadfdbb73c21e3292e8f0d6724f741929902a4918007a7fdd70258815a70297b

Download Submit
memory/2360-3-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2360-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2360-4-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/2360-16-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/2608-13-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/2608-15-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/2748-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads