tofsee | e0e94c3fafd615c50c084cf4d72bb8f98495ad99ec2408289ae47322748120f7

General

Target

f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe
Size

13.2MB
MD5

f36423b40d7a0bbc75a9d05f0e324e72
SHA1

31f80e7d1cea645b288db9835c5e52b23fa103b2
SHA256

e0e94c3fafd615c50c084cf4d72bb8f98495ad99ec2408289ae47322748120f7
SHA512

fc6118271567c7697b09d7c0ef7acc50cd1867768fd06302533f96b83009c3f7f566813f20f555d628a9d2fc7c9756ca0115f32d534add97c8c66a03ed48b7a7
SSDEEP

3072:Fdi8DS3tA2awlaR7/NDzFx2l0oHgBpMKwVTORO2j4UCtXGPjsjmw+V0+V0+V0+V+:a8DiApRRDzFxk0oHOpfws6Uprgp

Score

10^/10

tofsee evasion persistence trojan upx

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\pqbsekoh = "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

2304 netsh.exe

pid	process
2304	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\pqbsekoh\ImagePath = "C:\\Windows\\SysWOW64\\pqbsekoh\\uthjxuvn.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2376 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

uthjxuvn.exe

pid process

2548 uthjxuvn.exe

pid	process
2376	svchost.exe

pid	process
2548	uthjxuvn.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\uthjxuvn.exe	upx

Suspicious use of SetThreadContext 1 IoCs

Processes:

uthjxuvn.exe

description pid process target process

PID 2548 set thread context of 2376 2548 uthjxuvn.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

2644 sc.exe
2380 sc.exe
2532 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2548 set thread context of 2376	2548	uthjxuvn.exe	svchost.exe

pid	process
2644	sc.exe
2380	sc.exe
2532	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exeuthjxuvn.exe

description	pid	process	target process
PID 2040 wrote to memory of 2704	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 2704	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 2704	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 2704	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 1332	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 1332	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 1332	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 1332	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 2644	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2644	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2644	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2644	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2380	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2380	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2380	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2380	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2532	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2532	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2532	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2532	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	sc.exe
PID 2040 wrote to memory of 2304	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	netsh.exe
PID 2040 wrote to memory of 2304	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	netsh.exe
PID 2040 wrote to memory of 2304	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	netsh.exe
PID 2040 wrote to memory of 2304	2040	f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe	netsh.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe
PID 2548 wrote to memory of 2376	2548	uthjxuvn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pqbsekoh\
2⤵
PID:2704

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uthjxuvn.exe" C:\Windows\SysWOW64\pqbsekoh\
2⤵
PID:1332

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pqbsekoh binPath= "C:\Windows\SysWOW64\pqbsekoh\uthjxuvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2644

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pqbsekoh "wifi internet conection"
2⤵
- Launches sc.exe
PID:2380

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pqbsekoh
2⤵
- Launches sc.exe
PID:2532

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:2304

C:\Windows\SysWOW64\pqbsekoh\uthjxuvn.exe
C:\Windows\SysWOW64\pqbsekoh\uthjxuvn.exe /d"C:\Users\Admin\AppData\Local\Temp\f36423b40d7a0bbc75a9d05f0e324e72_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2376

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

Replay Monitor

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Downloads

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

Filesize
14.6MB

MD5
04bf8cc2665566312c9d1d4449c68a5f

SHA1
4ebf64be135033e0d82f76e73cab717b9514d6b7

SHA256
4d45713f8242d533027fdb1c79f0587a588a356745f4064714121a12a09105be

SHA512
60596905b44f73a85957c6a5ad5b7be5de33728a48ff3a4c4ff0d97f4b45a98a902c78ff9a4ed668f533201522ecebe74bfd81b477feccc758e5f94e41fee13a

Download Submit
memory/2040-1-0x00000000052F0000-0x00000000053F0000-memory.dmp

Filesize
1024KB

Download
memory/2040-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2040-6-0x0000000000400000-0x0000000005169000-memory.dmp

Filesize
77.4MB

Download
memory/2376-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2376-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2376-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2376-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2376-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2376-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2548-8-0x0000000005300000-0x0000000005400000-memory.dmp

Filesize
1024KB

Download
memory/2548-13-0x0000000000400000-0x0000000005169000-memory.dmp

Filesize
77.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads