tofsee | 2f05f2d8f91e7938437ff58cfa4aecae41d17e18d1abc37a2f70f24227b44230

General

Target

f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe
Size

13.7MB
MD5

f869bf89806a1807f9f293f862ce247d
SHA1

ad7e03dcfba00ae87b7ac0917ce4fb71692d6908
SHA256

2f05f2d8f91e7938437ff58cfa4aecae41d17e18d1abc37a2f70f24227b44230
SHA512

5b0b072562e5c2970714d9efefaf022b79f978bc5241e1d0d1b83e66759ec4a75f7fec1e200601caa7af9f0b9cb09951af62b44f788f9bac9ffeeb75275af566
SSDEEP

49152:wqwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwH:

Score

10^/10

tofsee evasion persistence 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) 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
5364	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\zhkplwdw\ImagePath = "C:\\Windows\\SysWOW64\\zhkplwdw\\xgsyidzp.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	xgsyidzp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 5892	2616	xgsyidzp.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
4252	sc.exe
5436	sc.exe
5756	sc.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4476	2260	WerFault.exe	90
3592	2616	WerFault.exe	101

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 1952	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	91
PID 2260 wrote to memory of 1952	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	91
PID 2260 wrote to memory of 1952	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	91
PID 2260 wrote to memory of 3556	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	93
PID 2260 wrote to memory of 3556	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	93
PID 2260 wrote to memory of 3556	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	93
PID 2260 wrote to memory of 4252	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	95
PID 2260 wrote to memory of 4252	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	95
PID 2260 wrote to memory of 4252	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	95
PID 2260 wrote to memory of 5436	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	97
PID 2260 wrote to memory of 5436	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	97
PID 2260 wrote to memory of 5436	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	97
PID 2260 wrote to memory of 5756	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	99
PID 2260 wrote to memory of 5756	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	99
PID 2260 wrote to memory of 5756	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	99
PID 2260 wrote to memory of 5364	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	102
PID 2260 wrote to memory of 5364	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	102
PID 2260 wrote to memory of 5364	2260	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	102
PID 2616 wrote to memory of 5892	2616	xgsyidzp.exe	109
PID 2616 wrote to memory of 5892	2616	xgsyidzp.exe	109
PID 2616 wrote to memory of 5892	2616	xgsyidzp.exe	109
PID 2616 wrote to memory of 5892	2616	xgsyidzp.exe	109
PID 2616 wrote to memory of 5892	2616	xgsyidzp.exe	109

C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zhkplwdw\
  2⤵
  PID:1952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xgsyidzp.exe" C:\Windows\SysWOW64\zhkplwdw\
  2⤵
  PID:3556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zhkplwdw binPath= "C:\Windows\SysWOW64\zhkplwdw\xgsyidzp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zhkplwdw "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:5436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zhkplwdw
  2⤵
  - Launches sc.exe
  PID:5756
- 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:5364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 1040
  2⤵
  - Program crash
  PID:4476

C:\Windows\SysWOW64\zhkplwdw\xgsyidzp.exe
C:\Windows\SysWOW64\zhkplwdw\xgsyidzp.exe /d"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:5892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2616 -s 512
  2⤵
  - Program crash
  PID:3592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2260 -ip 2260
1⤵
PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2616 -ip 2616
1⤵
PID:5888

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:3752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
5.8MB

MD5
e934af5c9e8d04a0941fad430fc0300f

SHA1
a9de4d1a8ea9d0c8290323fe08eeebcdf9a1daf9

SHA256
73faafbc0b6c6bfdcdb565aef6beed65be9dce876a66e5b7699c71f58fa95140

SHA512
d9a59968d605c56fe4b014ea7e6ba3002b29b0b70b465d44a8f151a423dbc8ad47aeccfba6ebf8a4998acb3b7e52e6728f53093200aea0ce5c1b64487c71e6e6

Download Submit
memory/2260-10-0x0000000002E60000-0x0000000002E73000-memory.dmp

Filesize
76KB

Download
memory/2260-2-0x0000000002E60000-0x0000000002E73000-memory.dmp

Filesize
76KB

Download
memory/2260-6-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2260-9-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2260-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

Filesize
1024KB

Download
memory/2260-4-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2616-17-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2616-11-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/2616-16-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/5892-12-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/5892-18-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/5892-15-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/5892-19-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/5892-20-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads