tofsee | 2c6cabba751c4b40a909ec025bf92efee2b6a3ad520bfcfda7042d298781846e

General

Target

fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe
Size

14.1MB
MD5

fb092c7934eacc2f736c2845b5bca1b7
SHA1

cb689ab4ac8afbd421ac33a7f3bc13a055c12737
SHA256

2c6cabba751c4b40a909ec025bf92efee2b6a3ad520bfcfda7042d298781846e
SHA512

e73277f8529f9f0e361a5ee37df2f4ce6bd717c490effdd1e1b2aa06532d11208c4d41bca1b881f559bbc7eab3b43af813aefdd2347d01cdbba48fd81d57718b
SSDEEP

24576:alxdvCcpOKCtBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBz:alzOR

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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\oiuxthtd = "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

2488 netsh.exe

pid	process
2488	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\oiuxthtd\ImagePath = "C:\\Windows\\SysWOW64\\oiuxthtd\\obbzyzmm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2448 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

obbzyzmm.exe

pid process

2740 obbzyzmm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

obbzyzmm.exe

description pid process target process

PID 2740 set thread context of 2448 2740 obbzyzmm.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

2596 sc.exe
2712 sc.exe
2588 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2448	svchost.exe

pid	process
2740	obbzyzmm.exe

description	pid	process	target process
PID 2740 set thread context of 2448	2740	obbzyzmm.exe	svchost.exe

pid	process
2596	sc.exe
2712	sc.exe
2588	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exeobbzyzmm.exe

description	pid	process	target process
PID 2928 wrote to memory of 2744	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 2744	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 2744	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 2744	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 3024	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 3024	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 3024	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 3024	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	cmd.exe
PID 2928 wrote to memory of 2596	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2596	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2596	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2596	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2712	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2712	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2712	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2712	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2588	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2588	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2588	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2588	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	sc.exe
PID 2928 wrote to memory of 2488	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	netsh.exe
PID 2928 wrote to memory of 2488	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	netsh.exe
PID 2928 wrote to memory of 2488	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	netsh.exe
PID 2928 wrote to memory of 2488	2928	fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe	netsh.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe
PID 2740 wrote to memory of 2448	2740	obbzyzmm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2928

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oiuxthtd\
2⤵
PID:2744

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\obbzyzmm.exe" C:\Windows\SysWOW64\oiuxthtd\
2⤵
PID:3024

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create oiuxthtd binPath= "C:\Windows\SysWOW64\oiuxthtd\obbzyzmm.exe /d\"C:\Users\Admin\AppData\Local\Temp\fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2596

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description oiuxthtd "wifi internet conection"
2⤵
- Launches sc.exe
PID:2712

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start oiuxthtd
2⤵
- Launches sc.exe
PID:2588

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:2488

C:\Windows\SysWOW64\oiuxthtd\obbzyzmm.exe
C:\Windows\SysWOW64\oiuxthtd\obbzyzmm.exe /d"C:\Users\Admin\AppData\Local\Temp\fb092c7934eacc2f736c2845b5bca1b7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2740

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2448

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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\obbzyzmm.exe
Filesize
11.6MB

MD5
171f509b86df6271759d32e8ddb3b24d

SHA1
ffc3a5ea47d94f48cf728431d492849fd360c8e0

SHA256
8b14746fa897e53c7eb58b6f087aa8c5d168a8a31c28c4d9c45129500b0eb2a9

SHA512
c6ede15dc3b98bd841162995a8669f4cacdc1ea6756968a30600d0796dd05c1b60853d126298837ba5ba3ee8a243ba3d6c36f4a9d6750985ee357b0bda8ae7c2

Download Submit
memory/2448-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2448-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2448-23-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2448-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2448-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2448-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2448-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2740-11-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2740-17-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2740-13-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2928-10-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2928-3-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2928-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2928-9-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2928-8-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2928-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads