tofsee | cba35a2e5c88c4b433d635d3321516b95421c97a026a6b6eb19417884e1ffe50

General

Target

fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe
Size

10.1MB
MD5

fe27b377e9edd9ecaccec493a2d15b2c
SHA1

4b4897923a21b80153888d0861baa9bfea6bc02b
SHA256

cba35a2e5c88c4b433d635d3321516b95421c97a026a6b6eb19417884e1ffe50
SHA512

6a2fea03da9079b8d4614fcbf148454aa820cd0cdb5b59b8407b2b216f7f672f76001873fb82be0530cb013022d0bf7c9f9eacb145e777a5c95ad2195d78949e
SSDEEP

98304:K2UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU0:K

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

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\qtgtkzhj = "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

2744 netsh.exe

pid	process
2744	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\qtgtkzhj\ImagePath = "C:\\Windows\\SysWOW64\\qtgtkzhj\\tweecaen.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2560 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tweecaen.exe

pid process

2684 tweecaen.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tweecaen.exe

description pid process target process

PID 2684 set thread context of 2560 2684 tweecaen.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

2012 sc.exe
2544 sc.exe
2660 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2560	svchost.exe

pid	process
2684	tweecaen.exe

description	pid	process	target process
PID 2684 set thread context of 2560	2684	tweecaen.exe	svchost.exe

pid	process
2012	sc.exe
2544	sc.exe
2660	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exetweecaen.exe

description	pid	process	target process
PID 1304 wrote to memory of 320	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 320	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 320	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 320	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 2368	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 2368	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 2368	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 2368	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	cmd.exe
PID 1304 wrote to memory of 2012	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2012	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2012	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2012	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2544	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2544	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2544	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2544	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2660	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2660	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2660	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 1304 wrote to memory of 2660	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	sc.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 2684 wrote to memory of 2560	2684	tweecaen.exe	svchost.exe
PID 1304 wrote to memory of 2744	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	netsh.exe
PID 1304 wrote to memory of 2744	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	netsh.exe
PID 1304 wrote to memory of 2744	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	netsh.exe
PID 1304 wrote to memory of 2744	1304	fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qtgtkzhj\
2⤵
PID:320

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tweecaen.exe" C:\Windows\SysWOW64\qtgtkzhj\
2⤵
PID:2368

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qtgtkzhj binPath= "C:\Windows\SysWOW64\qtgtkzhj\tweecaen.exe /d\"C:\Users\Admin\AppData\Local\Temp\fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2012

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qtgtkzhj "wifi internet conection"
2⤵
- Launches sc.exe
PID:2544

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qtgtkzhj
2⤵
- Launches sc.exe
PID:2660

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:2744

C:\Windows\SysWOW64\qtgtkzhj\tweecaen.exe
C:\Windows\SysWOW64\qtgtkzhj\tweecaen.exe /d"C:\Users\Admin\AppData\Local\Temp\fe27b377e9edd9ecaccec493a2d15b2c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2684

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2560

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.7MB

MD5
660d2cdd6c7e2a904aae78b9bd16c627

SHA1
13e7e98f32865ebfdcf9ace5e793536f102ba088

SHA256
e53ec8f55aa3d1b6261f1a40547f6b9d010cd37e1d809b159f484901dd686b96

SHA512
7d6f6901603d8b9897124a1fdd0d50823535351f4e601f82f6d7aea6b24e00ef28fa719106fd27cdede674b31dd45bd2e316e147cb0e12a01af376afa7e82e06

Download Submit
memory/1304-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1304-3-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1304-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

Filesize
1024KB

Download
memory/1304-19-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2560-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2560-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-16-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2684-8-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2684-13-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads