tofsee | 1f0454306dcfba27f8b800e1afaf802d1a88b92e2a096cab863fc26ed8fdc7b0

General

Target

f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
Size

12.2MB
MD5

f3c8d3257218a2b7afc8a4c8e9c77d3f
SHA1

8667190ac0beb9d575f3ae8ca1690498d2ab0dd5
SHA256

1f0454306dcfba27f8b800e1afaf802d1a88b92e2a096cab863fc26ed8fdc7b0
SHA512

019a0d7dd5e4c3ef7c167e4186cadb39e9042dda7592a0550f3993f7336997ac342c76309857bdd1b28bce87ed03ad80cd000d4c53755640c3855c54c48c32bb
SSDEEP

6144:MgZQZcij488Ua7qY57rMzCo8AqtSRV+a1Q:LZij488UaWYMzB5HRV+g

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

4476 netsh.exe

pid	process
4476	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\scxgcean\ImagePath = "C:\\Windows\\SysWOW64\\scxgcean\\ecmkkajz.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:

f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4664 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ecmkkajz.exe

pid process

1768 ecmkkajz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ecmkkajz.exe

description pid process target process

PID 1768 set thread context of 4664 1768 ecmkkajz.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

1320 sc.exe
4576 sc.exe
4512 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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2840 1904 WerFault.exe f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
3592 1768 WerFault.exe ecmkkajz.exe

pid	process
4664	svchost.exe

pid	process
1768	ecmkkajz.exe

description	pid	process	target process
PID 1768 set thread context of 4664	1768	ecmkkajz.exe	svchost.exe

pid	process
1320	sc.exe
4576	sc.exe
4512	sc.exe

pid	pid_target	process	target process
2840	1904	WerFault.exe	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
3592	1768	WerFault.exe	ecmkkajz.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exeecmkkajz.exe

description	pid	process	target process
PID 1904 wrote to memory of 3524	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 3524	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 3524	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 1876	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 1876	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 1876	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 1904 wrote to memory of 4576	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4576	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4576	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4512	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4512	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4512	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 1320	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 1320	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 1320	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 1904 wrote to memory of 4476	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 1904 wrote to memory of 4476	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 1904 wrote to memory of 4476	1904	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 1768 wrote to memory of 4664	1768	ecmkkajz.exe	svchost.exe
PID 1768 wrote to memory of 4664	1768	ecmkkajz.exe	svchost.exe
PID 1768 wrote to memory of 4664	1768	ecmkkajz.exe	svchost.exe
PID 1768 wrote to memory of 4664	1768	ecmkkajz.exe	svchost.exe
PID 1768 wrote to memory of 4664	1768	ecmkkajz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scxgcean\
2⤵
PID:3524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ecmkkajz.exe" C:\Windows\SysWOW64\scxgcean\
2⤵
PID:1876

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create scxgcean binPath= "C:\Windows\SysWOW64\scxgcean\ecmkkajz.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4576

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description scxgcean "wifi internet conection"
2⤵
- Launches sc.exe
PID:4512

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start scxgcean
2⤵
- Launches sc.exe
PID:1320

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:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 1036
2⤵
- Program crash
PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1904 -ip 1904
1⤵
PID:5036

C:\Windows\SysWOW64\scxgcean\ecmkkajz.exe
C:\Windows\SysWOW64\scxgcean\ecmkkajz.exe /d"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 512
2⤵
- Program crash
PID:3592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1768 -ip 1768
1⤵
PID:4716

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=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:440

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\ecmkkajz.exe
Filesize
10.3MB

MD5
5a5d820a644604f49c34a6dc27b67d7c

SHA1
aa3f01a0233e93e4bf3e53af84a4d84a6ae3cf03

SHA256
099f1086397ae15d59960bcb3c82eee3bce8207dd182be25e0adaa264d904f40

SHA512
deacce8c955d39248aecc9481c3408cab16fcf992e35d4c649c85427e5f0371eb284470b3898a90791cbf5399fd201f3dc931d378ae05d8d927e34979bb885dc

Download Submit
memory/1768-18-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1768-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1768-11-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/1904-10-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/1904-9-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1904-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/1904-5-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1904-3-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1904-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/4664-13-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/4664-16-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/4664-17-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/4664-19-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/4664-20-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads