tofsee | 989453998eb96a29b42a09855a8733715faa3cf4e9110e7e0377a703763a0bf0

General

Target

85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe
Size

142KB
MD5

85f05595c757c694136ceecaab4ef1a9
SHA1

decc013e8aed5b4d1bd93880862eac3f76b7be64
SHA256

989453998eb96a29b42a09855a8733715faa3cf4e9110e7e0377a703763a0bf0
SHA512

d59f987761dbf1fe2d248ecfb179a8df306c1508f7264df2713350405fb329da7bbd8ba42611f336c5cc3a2dc54e74d0b3eafa84d20cb5ad44c9302fd275c748
SSDEEP

3072:UO8/FLfgW6rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b3U:A94zwFLnKP46uC

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

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\vvuixpqt = "0"	svchost.exe

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

2736 netsh.exe

pid	process
2736	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\vvuixpqt\ImagePath = "C:\\Windows\\SysWOW64\\vvuixpqt\\jeelhtjb.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2640 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jeelhtjb.exe

pid process

2892 jeelhtjb.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jeelhtjb.exe

description pid process target process

PID 2892 set thread context of 2640 2892 jeelhtjb.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

2576 sc.exe
2692 sc.exe
2708 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2640	svchost.exe

pid	process
2892	jeelhtjb.exe

description	pid	process	target process
PID 2892 set thread context of 2640	2892	jeelhtjb.exe	svchost.exe

pid	process
2576	sc.exe
2692	sc.exe
2708	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exejeelhtjb.exe

description	pid	process	target process
PID 2248 wrote to memory of 2028	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2028	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2028	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2028	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2556	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2556	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2556	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2556	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	cmd.exe
PID 2248 wrote to memory of 2708	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2708	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2708	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2708	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2576	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2576	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2576	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2576	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2692	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2692	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2692	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2692	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	sc.exe
PID 2248 wrote to memory of 2736	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2736	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2736	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	netsh.exe
PID 2248 wrote to memory of 2736	2248	85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe	netsh.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe
PID 2892 wrote to memory of 2640	2892	jeelhtjb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2248

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vvuixpqt\
2⤵
PID:2028

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jeelhtjb.exe" C:\Windows\SysWOW64\vvuixpqt\
2⤵
PID:2556

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vvuixpqt binPath= "C:\Windows\SysWOW64\vvuixpqt\jeelhtjb.exe /d\"C:\Users\Admin\AppData\Local\Temp\85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2708

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vvuixpqt "wifi internet conection"
2⤵
- Launches sc.exe
PID:2576

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vvuixpqt
2⤵
- Launches sc.exe
PID:2692

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:2736

C:\Windows\SysWOW64\vvuixpqt\jeelhtjb.exe
C:\Windows\SysWOW64\vvuixpqt\jeelhtjb.exe /d"C:\Users\Admin\AppData\Local\Temp\85f05595c757c694136ceecaab4ef1a9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2892

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2640

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

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\jeelhtjb.exe
Filesize
13.4MB

MD5
e4ecd237a59e8f033c139fa50a4cae5b

SHA1
0d93a40a4f99cf1967a147f82f306bda7fcf2b69

SHA256
10044935f188a9c29170e3ec255c3000a80e918ae24ffb2edd9aa5fae47c368e

SHA512
45d8b7c3cada0c16ddaf71b927b08d212c5775856bfb035fe6379e530ed6ceb00cd23eddf47a5625ddfa9fec4b3f58d5ede0052558a7f19f153f16c06c688fe9

Download Submit
memory/2248-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2248-2-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2248-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2640-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2640-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2640-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2640-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2892-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2892-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads