tofsee | 54e93d7ebad675c3d0495677620fa298d3d0260eb55ec175ad6bbcb80a0fd065

General

Target

b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe
Size

99KB
MD5

b6eaeba05d7773789cae8999e0ecb122
SHA1

1cc7c34d2c7b9a1fa8a4520b3cab8280634275f0
SHA256

54e93d7ebad675c3d0495677620fa298d3d0260eb55ec175ad6bbcb80a0fd065
SHA512

ac484c0b8e3e91fcd044c5609ed9c5ee402db142b3efa71b2f43b886769eb3a724a44b2ba3c520533d771c0ea9af9f077522b57c170f7081c00116e0882932b3
SSDEEP

1536:R6iSAdnQAzW8omOMCUwyCq7/zWKBqlX7jUQgBEhEXgQDOvyWDWgQU+6qR:oiSAdnPzToX3k6mQ2gEQQDfLu+fR

Score

10^/10

tofsee evasion execution 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
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

304 netsh.exe

pid	process
304	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\uxypbbrm\ImagePath = "C:\\Windows\\SysWOW64\\uxypbbrm\\wfxwfrvm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2796 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wfxwfrvm.exe

pid process

1316 wfxwfrvm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wfxwfrvm.exe

description pid process target process

PID 1316 set thread context of 2796 1316 wfxwfrvm.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

2712 sc.exe
2660 sc.exe
2772 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2796	svchost.exe

pid	process
1316	wfxwfrvm.exe

description	pid	process	target process
PID 1316 set thread context of 2796	1316	wfxwfrvm.exe	svchost.exe

pid	process
2712	sc.exe
2660	sc.exe
2772	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exewfxwfrvm.exe

description	pid	process	target process
PID 1760 wrote to memory of 1264	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 1264	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 1264	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 1264	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 2216	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 2216	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 2216	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 2216	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	cmd.exe
PID 1760 wrote to memory of 2660	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2660	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2660	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2660	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2772	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2772	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2772	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2772	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2712	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2712	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2712	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1760 wrote to memory of 2712	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	sc.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1316 wrote to memory of 2796	1316	wfxwfrvm.exe	svchost.exe
PID 1760 wrote to memory of 304	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	netsh.exe
PID 1760 wrote to memory of 304	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	netsh.exe
PID 1760 wrote to memory of 304	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	netsh.exe
PID 1760 wrote to memory of 304	1760	b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uxypbbrm\
2⤵
PID:1264

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfxwfrvm.exe" C:\Windows\SysWOW64\uxypbbrm\
2⤵
PID:2216

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create uxypbbrm binPath= "C:\Windows\SysWOW64\uxypbbrm\wfxwfrvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2660

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description uxypbbrm "wifi internet conection"
2⤵
- Launches sc.exe
PID:2772

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start uxypbbrm
2⤵
- Launches sc.exe
PID:2712

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:304

C:\Windows\SysWOW64\uxypbbrm\wfxwfrvm.exe
C:\Windows\SysWOW64\uxypbbrm\wfxwfrvm.exe /d"C:\Users\Admin\AppData\Local\Temp\b6eaeba05d7773789cae8999e0ecb122_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1316

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.5MB

MD5
3af2922c4c927aa03995f7f763ca9ccd

SHA1
229045c14e9292b723842b4e4347b81e07c05fef

SHA256
4fff083f0137f5c5d3087de25dbc60b8dee5c1f3c244d59fc01279abc233ee2b

SHA512
28427a1e6b0028a6822f03d8c87898d4ce993841963a9bf1fb49c958901a701ecbd4cad1afdbe86850087b637fa14ed8463fa807d51a294527744f50cbabaeb8

Download Submit
memory/1316-6-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1316-12-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1760-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1760-2-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/1760-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1760-13-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2796-10-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-7-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-15-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads