tofsee | 592aae666394a3d72e7041676ddd615d31ca54f3a41c3c916580e2692b047ea9

General

Target

f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe
Size

14.4MB
MD5

f93f672e45a5c1129aba812e94192a07
SHA1

595bed5941aa45c13e64f34f370072d28dda19ef
SHA256

592aae666394a3d72e7041676ddd615d31ca54f3a41c3c916580e2692b047ea9
SHA512

32058e8d6b9c3710afa38bf9c9e5fa123cf2442a4de28df09b66ab3ac5fabad998c1bc29a4fec51f9d5dd6dfa80ca5bdb2dad08efca72e1861795cc1d7050632
SSDEEP

49152:+yqI2kmso555555555555555555555555555555555555555555555555555555h:+yqI2

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\wlzlety = "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

2796 netsh.exe

pid	process
2796	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\wlzlety\ImagePath = "C:\\Windows\\SysWOW64\\wlzlety\\kirsbxmi.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2428 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kirsbxmi.exe

pid process

2576 kirsbxmi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kirsbxmi.exe

description pid process target process

PID 2576 set thread context of 2428 2576 kirsbxmi.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

2876 sc.exe
2420 sc.exe
2668 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2428	svchost.exe

pid	process
2576	kirsbxmi.exe

description	pid	process	target process
PID 2576 set thread context of 2428	2576	kirsbxmi.exe	svchost.exe

pid	process
2876	sc.exe
2420	sc.exe
2668	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exekirsbxmi.exe

description	pid	process	target process
PID 2328 wrote to memory of 1736	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1736	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1736	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1736	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1500	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1500	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1500	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 1500	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	cmd.exe
PID 2328 wrote to memory of 2668	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2668	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2668	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2668	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2876	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2876	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2876	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2876	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2420	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2420	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2420	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2420	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	sc.exe
PID 2328 wrote to memory of 2796	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	netsh.exe
PID 2328 wrote to memory of 2796	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	netsh.exe
PID 2328 wrote to memory of 2796	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	netsh.exe
PID 2328 wrote to memory of 2796	2328	f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe	netsh.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe
PID 2576 wrote to memory of 2428	2576	kirsbxmi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2328

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wlzlety\
2⤵
PID:1736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kirsbxmi.exe" C:\Windows\SysWOW64\wlzlety\
2⤵
PID:1500

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wlzlety binPath= "C:\Windows\SysWOW64\wlzlety\kirsbxmi.exe /d\"C:\Users\Admin\AppData\Local\Temp\f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2668

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wlzlety "wifi internet conection"
2⤵
- Launches sc.exe
PID:2876

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wlzlety
2⤵
- Launches sc.exe
PID:2420

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:2796

C:\Windows\SysWOW64\wlzlety\kirsbxmi.exe
C:\Windows\SysWOW64\wlzlety\kirsbxmi.exe /d"C:\Users\Admin\AppData\Local\Temp\f93f672e45a5c1129aba812e94192a07_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2576

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2428

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\kirsbxmi.exe

Filesize
13.0MB

MD5
cbf24db8066ca6d2c6544bfc654807af

SHA1
90ebb66875ba62896b515faf394731337a8d044a

SHA256
c5f65e1633cdee2b61787ebfda0bf1bcd3bce04611a6b22b3514b198227d453b

SHA512
36bb6e61f5e9d9977748a82c2dea26b524698391dc77d9fff02b0d953ff6b0fff3c3d1ed2ddc1ebfff002dcf7bdf670568d112058570d81d8900c594216ce26c

Download Submit
memory/2328-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2328-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2328-5-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2328-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2328-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2328-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2428-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2428-23-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2428-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2428-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2428-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2428-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2428-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-12-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2576-17-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2576-11-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads