tofsee | 2d9b24d71fc9718cc923f30729423817aa1c3547b27ff086e0d173d132932c7d

General

Target

feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe
Size

14.2MB
MD5

feddd618ad261223fa56a9a90c85b16d
SHA1

c52277afeab4974e09f04817d4312b19e62a7a4c
SHA256

2d9b24d71fc9718cc923f30729423817aa1c3547b27ff086e0d173d132932c7d
SHA512

af5071941f7508e01b6ef14a15bfdece43143af28d15f11d577cf0d544f67db626d9ddeff35f5dff2cbb194eec8e97debf670228c90c6807e50caca6eecda30c
SSDEEP

196608:CV8YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY3:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
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

3252 netsh.exe

pid	process
3252	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\qyiizrkk\ImagePath = "C:\\Windows\\SysWOW64\\qyiizrkk\\jtojaatz.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

5056 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jtojaatz.exe

pid process

4212 jtojaatz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jtojaatz.exe

description pid process target process

PID 4212 set thread context of 5056 4212 jtojaatz.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

3516 sc.exe
428 sc.exe
3964 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3704 4792 WerFault.exe feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe
1900 4212 WerFault.exe jtojaatz.exe

pid	process
5056	svchost.exe

pid	process
4212	jtojaatz.exe

description	pid	process	target process
PID 4212 set thread context of 5056	4212	jtojaatz.exe	svchost.exe

pid	process
3516	sc.exe
428	sc.exe
3964	sc.exe

pid	pid_target	process	target process
3704	4792	WerFault.exe	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe
1900	4212	WerFault.exe	jtojaatz.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exejtojaatz.exe

description	pid	process	target process
PID 4792 wrote to memory of 2612	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 2612	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 2612	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 3420	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 3420	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 3420	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	cmd.exe
PID 4792 wrote to memory of 3516	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3516	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3516	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 428	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 428	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 428	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3964	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3964	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3964	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	sc.exe
PID 4792 wrote to memory of 3252	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	netsh.exe
PID 4792 wrote to memory of 3252	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	netsh.exe
PID 4792 wrote to memory of 3252	4792	feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe	netsh.exe
PID 4212 wrote to memory of 5056	4212	jtojaatz.exe	svchost.exe
PID 4212 wrote to memory of 5056	4212	jtojaatz.exe	svchost.exe
PID 4212 wrote to memory of 5056	4212	jtojaatz.exe	svchost.exe
PID 4212 wrote to memory of 5056	4212	jtojaatz.exe	svchost.exe
PID 4212 wrote to memory of 5056	4212	jtojaatz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4792

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qyiizrkk\
2⤵
PID:2612

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jtojaatz.exe" C:\Windows\SysWOW64\qyiizrkk\
2⤵
PID:3420

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qyiizrkk binPath= "C:\Windows\SysWOW64\qyiizrkk\jtojaatz.exe /d\"C:\Users\Admin\AppData\Local\Temp\feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3516

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qyiizrkk "wifi internet conection"
2⤵
- Launches sc.exe
PID:428

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qyiizrkk
2⤵
- Launches sc.exe
PID:3964

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:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1188
2⤵
- Program crash
PID:3704

C:\Windows\SysWOW64\qyiizrkk\jtojaatz.exe
C:\Windows\SysWOW64\qyiizrkk\jtojaatz.exe /d"C:\Users\Admin\AppData\Local\Temp\feddd618ad261223fa56a9a90c85b16d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4212

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 512
2⤵
- Program crash
PID:1900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4792 -ip 4792
1⤵
PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4212 -ip 4212
1⤵
PID:2844

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\jtojaatz.exe
Filesize
12.6MB

MD5
27d3e4da9e31bd7bf08514c522920cf7

SHA1
fcebc1c9c1e7ceb3e158e8abb26b6e707c5b3d46

SHA256
5d509f204ac7126dfb7f1eda40d7785bff5547deca436a6257f0dfa2b33b76c1

SHA512
2db00a0051162b9cdd7fac9871bd3ef279810d085f8b90b8b37337f4747e0363156fbe33b732b8b0a108ceb338d924defb10652c8f974b86540bbc5984d3e3c0

Download Submit
memory/4212-10-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

Filesize
1024KB

Download
memory/4212-12-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4212-18-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4792-4-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4792-2-0x0000000000A50000-0x0000000000A63000-memory.dmp

Filesize
76KB

Download
memory/4792-7-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4792-8-0x0000000000A50000-0x0000000000A63000-memory.dmp

Filesize
76KB

Download
memory/4792-1-0x0000000000A90000-0x0000000000B90000-memory.dmp

Filesize
1024KB

Download
memory/5056-11-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/5056-16-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/5056-17-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/5056-19-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads