tofsee | 58aa25180cf5775c92f460b11fcecd58f5bc03ebd03848b1e025c09864158b1c

General

Target

fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe
Size

10.3MB
MD5

fee7407aceb4cdb6521f6729e4e819c3
SHA1

c3b6fa6d67cf29c1ba69938658b6e1f6bd6169ce
SHA256

58aa25180cf5775c92f460b11fcecd58f5bc03ebd03848b1e025c09864158b1c
SHA512

e6f0bb159d4f42c68229a9794cdfdcfbb2c8835d63495b4766b5fc757525cdcbe4052300e89fa7ada68212b5e1e84e0dfed71655cdf972a9bf71cb659807a8da
SSDEEP

24576:XjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee+:X/D

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

Processes:

netsh.exe

pid process

1504 netsh.exe

pid	process
1504	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\arkpesgz\ImagePath = "C:\\Windows\\SysWOW64\\arkpesgz\\veqwgbxn.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

Processes:

fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

veqwgbxn.exe

pid process

4676 veqwgbxn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

veqwgbxn.exe

description pid process target process

PID 4676 set thread context of 1600 4676 veqwgbxn.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1488 sc.exe
4288 sc.exe
3732 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4676	veqwgbxn.exe

description	pid	process	target process
PID 4676 set thread context of 1600	4676	veqwgbxn.exe	svchost.exe

pid	process
1488	sc.exe
4288	sc.exe
3732	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exeveqwgbxn.exe

description	pid	process	target process
PID 2144 wrote to memory of 3772	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 3772	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 3772	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 2312	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 2312	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 2312	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2144 wrote to memory of 1488	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 1488	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 1488	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 4288	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 4288	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 4288	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 3732	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 3732	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 3732	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2144 wrote to memory of 1504	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2144 wrote to memory of 1504	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2144 wrote to memory of 1504	2144	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 4676 wrote to memory of 1600	4676	veqwgbxn.exe	svchost.exe
PID 4676 wrote to memory of 1600	4676	veqwgbxn.exe	svchost.exe
PID 4676 wrote to memory of 1600	4676	veqwgbxn.exe	svchost.exe
PID 4676 wrote to memory of 1600	4676	veqwgbxn.exe	svchost.exe
PID 4676 wrote to memory of 1600	4676	veqwgbxn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\arkpesgz\
2⤵
PID:3772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\veqwgbxn.exe" C:\Windows\SysWOW64\arkpesgz\
2⤵
PID:2312

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create arkpesgz binPath= "C:\Windows\SysWOW64\arkpesgz\veqwgbxn.exe /d\"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1488

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description arkpesgz "wifi internet conection"
2⤵
- Launches sc.exe
PID:4288

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start arkpesgz
2⤵
- Launches sc.exe
PID:3732

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:1504

C:\Windows\SysWOW64\arkpesgz\veqwgbxn.exe
C:\Windows\SysWOW64\arkpesgz\veqwgbxn.exe /d"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4676

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:1600

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=4032 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:936

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\veqwgbxn.exe

Filesize
10.8MB

MD5
2ad2142f2f8462447fc4a9054c944784

SHA1
fa805f828d94bbeca24cd8413e4c96e5a41d96f0

SHA256
4267034796fb7b1d1c002b0d6ae294ff6fccf6f797c86c07fdc986374fdf4fa0

SHA512
416e6fd30480722045d3d9e9069ea7fddd32db7a306daabfaa4acc5cf3b05ea1e922e8bc86a08575bd0d3df6b5c00272f2b8241fcbf7b054cf0268707d436b00

Download Submit
memory/1600-14-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1600-11-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1600-27-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1600-19-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1600-18-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/2144-17-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2144-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2144-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2144-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2144-2-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/2144-21-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/2144-5-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4676-10-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4676-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4676-9-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads