tofsee | c89d2e5ffe20c5e936a9df89dbe29d684442bdb0ec0401fdf7e34e25963866fc

General

Target

f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe
Size

14.8MB
MD5

f3015e7fa8a419f7f1110881d4a15abf
SHA1

2bb0e90e81ce18596a98bb7f72eaabf63e1147f1
SHA256

c89d2e5ffe20c5e936a9df89dbe29d684442bdb0ec0401fdf7e34e25963866fc
SHA512

ed53c70614f15716e277d984d5d3131af53c407befcd72ad7398b06da3f18af7fd95d58db5eeb9c0cd16a3dc6f8334576c1236f9881738fd0785b9d3337bd06d
SSDEEP

49152:Tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu:

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\kibygykc = "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

2428 netsh.exe

pid	process
2428	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\kibygykc\ImagePath = "C:\\Windows\\SysWOW64\\kibygykc\\revewjlf.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1668 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

revewjlf.exe

pid process

2688 revewjlf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

revewjlf.exe

description pid process target process

PID 2688 set thread context of 1668 2688 revewjlf.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

2856 sc.exe
2724 sc.exe
2512 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1668	svchost.exe

pid	process
2688	revewjlf.exe

description	pid	process	target process
PID 2688 set thread context of 1668	2688	revewjlf.exe	svchost.exe

pid	process
2856	sc.exe
2724	sc.exe
2512	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exerevewjlf.exe

description	pid	process	target process
PID 2340 wrote to memory of 2736	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2736	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2736	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2736	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2548	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2548	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2548	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2548	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	cmd.exe
PID 2340 wrote to memory of 2724	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2724	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2724	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2724	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2512	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2512	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2512	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2512	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2856	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2856	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2856	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2856	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	sc.exe
PID 2340 wrote to memory of 2428	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	netsh.exe
PID 2340 wrote to memory of 2428	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	netsh.exe
PID 2340 wrote to memory of 2428	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	netsh.exe
PID 2340 wrote to memory of 2428	2340	f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe	netsh.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe
PID 2688 wrote to memory of 1668	2688	revewjlf.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2340

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kibygykc\
2⤵
PID:2736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\revewjlf.exe" C:\Windows\SysWOW64\kibygykc\
2⤵
PID:2548

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create kibygykc binPath= "C:\Windows\SysWOW64\kibygykc\revewjlf.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2724

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description kibygykc "wifi internet conection"
2⤵
- Launches sc.exe
PID:2512

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start kibygykc
2⤵
- Launches sc.exe
PID:2856

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:2428

C:\Windows\SysWOW64\kibygykc\revewjlf.exe
C:\Windows\SysWOW64\kibygykc\revewjlf.exe /d"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2688

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1668

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\revewjlf.exe
Filesize
12.9MB

MD5
b122a6cddd7b94fdeb66ea811f4fffe6

SHA1
d2f8233fea2e67465916f8cf8cd17297b03c6158

SHA256
e03b71c0d5ba887422fdcd0eccd8fd2e5365b28d43ad3fbb04a395e745900c52

SHA512
d66ebba3c59b1540676f3daad74aad76617baec46baa2a1e9f536b604a0bb6e9343877ea7dd8e0352c4595914a94136004597c167c14cbf5196bec8862535d07

Download Submit
memory/1668-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1668-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1668-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1668-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1668-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1668-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2340-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2340-4-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2340-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2340-8-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2340-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/2688-10-0x0000000002D00000-0x0000000002E00000-memory.dmp

Filesize
1024KB

Download
memory/2688-18-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2688-14-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads