tofsee | a1978f71a6c74917b832e91e4ca0f7e7c7aad4cebf354696c92b0e42ef2af0ac

General

Target

53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe
Size

100KB
MD5

53d76bb5b64e47426f0e917df07fe458
SHA1

fd7a4854773cec14c3faac841f58f22f4d870bea
SHA256

a1978f71a6c74917b832e91e4ca0f7e7c7aad4cebf354696c92b0e42ef2af0ac
SHA512

44bb18fe4cd15f56f5f51d1599d1f0765b122b57c0469f4004e950770c470c68d13283a958e5489f7355a6aa31e288531a6f905c83e2212af3dfae51cb05272b
SSDEEP

1536:K0HtGDRSAfMOdAhezBhgmnK5649QAqZD0EinrGOlI3M4a50R3ddbhUfIVIjE1:uDRSApAhGBhgO495KzODINdR/2f+P

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\ylsmczdl = "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

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\ylsmczdl\ImagePath = "C:\\Windows\\SysWOW64\\ylsmczdl\\smolfblq.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2776 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

smolfblq.exe

pid process

2564 smolfblq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

smolfblq.exe

description pid process target process

PID 2564 set thread context of 2776 2564 smolfblq.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

3040 sc.exe
2604 sc.exe
2308 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2776	svchost.exe

pid	process
2564	smolfblq.exe

description	pid	process	target process
PID 2564 set thread context of 2776	2564	smolfblq.exe	svchost.exe

pid	process
3040	sc.exe
2604	sc.exe
2308	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exesmolfblq.exe

description	pid	process	target process
PID 2872 wrote to memory of 1760	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 1760	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 1760	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 1760	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 2944	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 2944	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 2944	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 2944	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	cmd.exe
PID 2872 wrote to memory of 3040	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 3040	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 3040	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 3040	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2604	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2604	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2604	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2604	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2308	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2308	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2308	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2872 wrote to memory of 2308	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	sc.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2564 wrote to memory of 2776	2564	smolfblq.exe	svchost.exe
PID 2872 wrote to memory of 2744	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	netsh.exe
PID 2872 wrote to memory of 2744	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	netsh.exe
PID 2872 wrote to memory of 2744	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	netsh.exe
PID 2872 wrote to memory of 2744	2872	53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2872

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ylsmczdl\
2⤵
PID:1760

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\smolfblq.exe" C:\Windows\SysWOW64\ylsmczdl\
2⤵
PID:2944

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ylsmczdl binPath= "C:\Windows\SysWOW64\ylsmczdl\smolfblq.exe /d\"C:\Users\Admin\AppData\Local\Temp\53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3040

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ylsmczdl "wifi internet conection"
2⤵
- Launches sc.exe
PID:2604

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ylsmczdl
2⤵
- Launches sc.exe
PID:2308

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\ylsmczdl\smolfblq.exe
C:\Windows\SysWOW64\ylsmczdl\smolfblq.exe /d"C:\Users\Admin\AppData\Local\Temp\53d76bb5b64e47426f0e917df07fe458_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2564

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2776

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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\smolfblq.exe
Filesize
11.5MB

MD5
f841f8bcd42ab5e78ec6dd0ecc903db6

SHA1
5a0047f9cd75b06217650d7960c1eccedbdf3139

SHA256
3ae7037d5edc57af1bd3d4dd7b3114468e4db317b53edefe3e02fd8d893582f3

SHA512
6db8040dc134b9314c227d8ba510332c222ae823cef28fb6996b5abe641826fef2f3045681e7ee724293f71458d7d253ade98903c3134aa02163669f6668d759

Download Submit
memory/2564-6-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2564-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2776-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2872-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2872-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2872-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2872-13-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads