tofsee | de8a8858b5540698142f413e8990070ce478c2d314f4e61c32496e9eff9a31bf

General

Target

f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe
Size

10.8MB
MD5

f9e4d29cbf1383086b1eeac1cee11bcc
SHA1

76011bf992a5c81d5b24842358f72144b2d221c4
SHA256

de8a8858b5540698142f413e8990070ce478c2d314f4e61c32496e9eff9a31bf
SHA512

30b3ecbfa24d685f6e99babc58f4af7ed3b966c3e5659843a5fc52a1c60a46645247c38a67674ad5bac2c37797f5de2f5aacb20d75c9726cdf1d3b57b5865348
SSDEEP

12288:BVkuScTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTcTE:BVX

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

2572 netsh.exe

pid	process
2572	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\hpxrynbd\ImagePath = "C:\\Windows\\SysWOW64\\hpxrynbd\\zgjhiiym.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:

f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Control Panel\International\Geo\Nation	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4040 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

zgjhiiym.exe

pid process

4200 zgjhiiym.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

zgjhiiym.exe

description pid process target process

PID 4200 set thread context of 4040 4200 zgjhiiym.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

3796 sc.exe
4808 sc.exe
2504 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4040	svchost.exe

pid	process
4200	zgjhiiym.exe

description	pid	process	target process
PID 4200 set thread context of 4040	4200	zgjhiiym.exe	svchost.exe

pid	process
3796	sc.exe
4808	sc.exe
2504	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exezgjhiiym.exe

description	pid	process	target process
PID 3040 wrote to memory of 1256	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 1256	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 1256	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 1632	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 1632	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 1632	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	cmd.exe
PID 3040 wrote to memory of 4808	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 4808	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 4808	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 2504	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 2504	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 2504	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 3796	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 3796	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 3796	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	sc.exe
PID 3040 wrote to memory of 2572	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	netsh.exe
PID 3040 wrote to memory of 2572	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	netsh.exe
PID 3040 wrote to memory of 2572	3040	f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe	netsh.exe
PID 4200 wrote to memory of 4040	4200	zgjhiiym.exe	svchost.exe
PID 4200 wrote to memory of 4040	4200	zgjhiiym.exe	svchost.exe
PID 4200 wrote to memory of 4040	4200	zgjhiiym.exe	svchost.exe
PID 4200 wrote to memory of 4040	4200	zgjhiiym.exe	svchost.exe
PID 4200 wrote to memory of 4040	4200	zgjhiiym.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3040

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hpxrynbd\
2⤵
PID:1256

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zgjhiiym.exe" C:\Windows\SysWOW64\hpxrynbd\
2⤵
PID:1632

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create hpxrynbd binPath= "C:\Windows\SysWOW64\hpxrynbd\zgjhiiym.exe /d\"C:\Users\Admin\AppData\Local\Temp\f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4808

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description hpxrynbd "wifi internet conection"
2⤵
- Launches sc.exe
PID:2504

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start hpxrynbd
2⤵
- Launches sc.exe
PID:3796

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:2572

C:\Windows\SysWOW64\hpxrynbd\zgjhiiym.exe
C:\Windows\SysWOW64\hpxrynbd\zgjhiiym.exe /d"C:\Users\Admin\AppData\Local\Temp\f9e4d29cbf1383086b1eeac1cee11bcc_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4200

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4040

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\zgjhiiym.exe

Filesize
12.9MB

MD5
8b27066bdf94509fe5e93fbc28c5044b

SHA1
d7f5fd4eeec72b4247f1a0dff57779cf6aedeff3

SHA256
fc35d3e659e9ad6049d442557a2610fcabb994f685620d698dfd35d7f3086569

SHA512
fc12ac9c83e77fb72d2acd6951fa0b9f00736e5a225d1db394dcae52b3fa046d8bd7e922449b0185ee3fe195fe27a7fb54c6c4f50b359fdad268ccffd15e6a01

Download Submit
memory/3040-10-0x00000000048D0000-0x00000000048E3000-memory.dmp

Filesize
76KB

Download
memory/3040-4-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/3040-5-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/3040-2-0x00000000048D0000-0x00000000048E3000-memory.dmp

Filesize
76KB

Download
memory/3040-9-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/3040-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/4040-12-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4040-15-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4040-19-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4040-20-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4040-21-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4200-11-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/4200-17-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download
memory/4200-16-0x0000000000400000-0x0000000002CB9000-memory.dmp

Filesize
40.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads