tofsee | 2e6e2a327ff7f6b0b53d80d8c0fe67cef3ea8513f955e536e0f4a7005b6e06f9

General

Target

fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
Size

12.8MB
MD5

fa9d27cf93f96d92ff552b233428f4d9
SHA1

8bf2837a74597a168425ba48c4706756d2fb20c6
SHA256

2e6e2a327ff7f6b0b53d80d8c0fe67cef3ea8513f955e536e0f4a7005b6e06f9
SHA512

5c5fbc5534c4434fc8b81294e72fbefe257e4983fc7e7efcfdcdc61c249dbec25f53333921a1de3d98d6a23f0f8d0ee7783f5384ccbd87a02d3a0f2f43ae3f9d
SSDEEP

49152:xkVuhFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF:xk

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\bnrxzmyv = "0"	svchost.exe

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

2600 netsh.exe

pid	process
2600	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\bnrxzmyv\ImagePath = "C:\\Windows\\SysWOW64\\bnrxzmyv\\wqsvonn.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2940 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wqsvonn.exe

pid process

2476 wqsvonn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wqsvonn.exe

description pid process target process

PID 2476 set thread context of 2940 2476 wqsvonn.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

2840 sc.exe
2628 sc.exe
2180 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2940	svchost.exe

pid	process
2476	wqsvonn.exe

description	pid	process	target process
PID 2476 set thread context of 2940	2476	wqsvonn.exe	svchost.exe

pid	process
2840	sc.exe
2628	sc.exe
2180	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exewqsvonn.exe

description	pid	process	target process
PID 2356 wrote to memory of 2128	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2128	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2128	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2128	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2644	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2644	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2644	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2644	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2356 wrote to memory of 2840	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2840	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2840	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2840	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2628	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2628	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2628	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2628	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2180	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2180	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2180	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2180	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2356 wrote to memory of 2600	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2356 wrote to memory of 2600	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2356 wrote to memory of 2600	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2356 wrote to memory of 2600	2356	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe
PID 2476 wrote to memory of 2940	2476	wqsvonn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bnrxzmyv\
2⤵
PID:2128

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wqsvonn.exe" C:\Windows\SysWOW64\bnrxzmyv\
2⤵
PID:2644

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create bnrxzmyv binPath= "C:\Windows\SysWOW64\bnrxzmyv\wqsvonn.exe /d\"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2840

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description bnrxzmyv "wifi internet conection"
2⤵
- Launches sc.exe
PID:2628

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start bnrxzmyv
2⤵
- Launches sc.exe
PID:2180

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:2600

C:\Windows\SysWOW64\bnrxzmyv\wqsvonn.exe
C:\Windows\SysWOW64\bnrxzmyv\wqsvonn.exe /d"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2476

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2940

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\wqsvonn.exe
Filesize
14.4MB

MD5
c23cc0f6e30699d47b3c97838a4096a9

SHA1
a4a97889749a574e412953ba52e2d2ed9b936075

SHA256
12c2e698ec295a91b6f909ea88244f73b83fe7fd30d87b606a889ef462baf8da

SHA512
fd652655bbd5754da53a9172a3997b369d12aebe700c18f6acf8d59c1fa91908cd5de658b88a50e84c7377d5a35b2dc7b67e967cc512571cb31928085ae38388

Download Submit
memory/2356-1-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

Filesize
1024KB

Download
memory/2356-4-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2356-7-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2356-3-0x00000000002C0000-0x00000000002D3000-memory.dmp

Filesize
76KB

Download
memory/2476-15-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2476-9-0x0000000000D40000-0x0000000000E40000-memory.dmp

Filesize
1024KB

Download
memory/2476-12-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2940-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2940-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads