tofsee | 2fbab2a754bf5e3cfa4b5e6c0c024d795b94850977f3ae3d2b6b81fa2cf8cac6

General

Target

ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe
Size

10.9MB
MD5

ab68452865d2cef1785127b8fc4d46d7
SHA1

d79e30a28f052a8a7a60c9834ad6557e22bfc0fa
SHA256

2fbab2a754bf5e3cfa4b5e6c0c024d795b94850977f3ae3d2b6b81fa2cf8cac6
SHA512

93e720d1be670885f7429d9e0a4be6f39131f68202429c011a79db244083a057641d73731824593fb42175da368914b7b37df4ccd6749a34597e3f038e3e99ae
SSDEEP

12288:+b22XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:K2

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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
4060	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\eiyaukpu\ImagePath = "C:\\Windows\\SysWOW64\\eiyaukpu\\xjqkpviq.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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2348	xjqkpviq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 1668	2348	xjqkpviq.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
888	sc.exe
1324	sc.exe
4576	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	xjqkpviq.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 3084	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	90
PID 2368 wrote to memory of 3084	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	90
PID 2368 wrote to memory of 3084	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	90
PID 2368 wrote to memory of 368	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	94
PID 2368 wrote to memory of 368	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	94
PID 2368 wrote to memory of 368	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	94
PID 2368 wrote to memory of 888	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	96
PID 2368 wrote to memory of 888	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	96
PID 2368 wrote to memory of 888	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	96
PID 2368 wrote to memory of 1324	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	98
PID 2368 wrote to memory of 1324	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	98
PID 2368 wrote to memory of 1324	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	98
PID 2368 wrote to memory of 4576	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	100
PID 2368 wrote to memory of 4576	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	100
PID 2368 wrote to memory of 4576	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	100
PID 2368 wrote to memory of 4060	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	103
PID 2368 wrote to memory of 4060	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	103
PID 2368 wrote to memory of 4060	2368	ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe	103
PID 2348 wrote to memory of 1668	2348	xjqkpviq.exe	106
PID 2348 wrote to memory of 1668	2348	xjqkpviq.exe	106
PID 2348 wrote to memory of 1668	2348	xjqkpviq.exe	106
PID 2348 wrote to memory of 1668	2348	xjqkpviq.exe	106
PID 2348 wrote to memory of 1668	2348	xjqkpviq.exe	106

C:\Users\Admin\AppData\Local\Temp\ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eiyaukpu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjqkpviq.exe" C:\Windows\SysWOW64\eiyaukpu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eiyaukpu binPath= "C:\Windows\SysWOW64\eiyaukpu\xjqkpviq.exe /d\"C:\Users\Admin\AppData\Local\Temp\ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eiyaukpu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eiyaukpu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4576
- 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:4060

C:\Windows\SysWOW64\eiyaukpu\xjqkpviq.exe
C:\Windows\SysWOW64\eiyaukpu\xjqkpviq.exe /d"C:\Users\Admin\AppData\Local\Temp\ab68452865d2cef1785127b8fc4d46d7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1668

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\xjqkpviq.exe

Filesize
12.6MB

MD5
b93dccf4d10e8740e4836c70a9a4edd4

SHA1
0e0215357781dcc3dc8842e45a5734d059b3b16c

SHA256
9cc9005d0803757d37dfc312d5b98644a5a029313a03713e7b8e74ea40f6433a

SHA512
d63f552dfe7c20195eb079690ad14628a08f21a11e005735f24fc8d1b7a7e692183c4b2aa8ab3c0258f5dda5438ba9d985554bf0adf5ab41b78c7464e3bcae09

Download Submit
memory/1668-14-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download
memory/1668-16-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download
memory/1668-19-0x0000000000810000-0x0000000000825000-memory.dmp

Filesize
84KB

Download
memory/2348-12-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2348-13-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2348-11-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2348-18-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-2-0x00000000021E0000-0x00000000021F3000-memory.dmp

Filesize
76KB

Download
memory/2368-9-0x00000000021E0000-0x00000000021F3000-memory.dmp

Filesize
76KB

Download
memory/2368-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2368-1-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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