tofsee | a3eb89c5fe1e820b0ba694c4aeab1351999630b490d988b4dd698753ab8eb7dc

General

Target

f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe
Size

333KB
MD5

f53aeee66a0b0dc9cdf6dd537f48287c
SHA1

e7e29654829306c7c1633190833d1fe8fc0c44b5
SHA256

a3eb89c5fe1e820b0ba694c4aeab1351999630b490d988b4dd698753ab8eb7dc
SHA512

6d7a5f77650886803623ae6c3f7aae73a6a4d641b47cbe4707df91d5ed150b55da4a79be0abcdaa4ad2418037579abf966baf451c56eeb41c1a1183916eba04a
SSDEEP

6144:/Q41aFOBM9gLaaxfOcWB4KsjKTzcbbyXoAsy6mOnbe3q:o44FuX+axfOcWKhjKncb+vsTmql

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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\jfvltmyb = "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

2200 netsh.exe

pid	process
2200	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\jfvltmyb\ImagePath = "C:\\Windows\\SysWOW64\\jfvltmyb\\obkhinzm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2480 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

obkhinzm.exe

pid process

2428 obkhinzm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

obkhinzm.exe

description pid process target process

PID 2428 set thread context of 2480 2428 obkhinzm.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

2624 sc.exe
2412 sc.exe
2524 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2480	svchost.exe

pid	process
2428	obkhinzm.exe

description	pid	process	target process
PID 2428 set thread context of 2480	2428	obkhinzm.exe	svchost.exe

pid	process
2624	sc.exe
2412	sc.exe
2524	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exeobkhinzm.exe

description	pid	process	target process
PID 2904 wrote to memory of 2940	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2940	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2940	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2940	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2972	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2972	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2972	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2972	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	cmd.exe
PID 2904 wrote to memory of 2624	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2624	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2624	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2624	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2412	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2412	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2412	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2412	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2524	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2524	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2524	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2524	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	sc.exe
PID 2904 wrote to memory of 2200	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	netsh.exe
PID 2904 wrote to memory of 2200	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	netsh.exe
PID 2904 wrote to memory of 2200	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	netsh.exe
PID 2904 wrote to memory of 2200	2904	f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe	netsh.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe
PID 2428 wrote to memory of 2480	2428	obkhinzm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2904

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jfvltmyb\
2⤵
PID:2940

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\obkhinzm.exe" C:\Windows\SysWOW64\jfvltmyb\
2⤵
PID:2972

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create jfvltmyb binPath= "C:\Windows\SysWOW64\jfvltmyb\obkhinzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2624

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description jfvltmyb "wifi internet conection"
2⤵
- Launches sc.exe
PID:2412

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start jfvltmyb
2⤵
- Launches sc.exe
PID:2524

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:2200

C:\Windows\SysWOW64\jfvltmyb\obkhinzm.exe
C:\Windows\SysWOW64\jfvltmyb\obkhinzm.exe /d"C:\Users\Admin\AppData\Local\Temp\f53aeee66a0b0dc9cdf6dd537f48287c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2428

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2480

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

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Downloads

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

Filesize
10.6MB

MD5
95c87bbc81167289b252b349eb3c732a

SHA1
39daf173cdc5f6289c07e7c3d33842f1244d3590

SHA256
da66911a23c53304583fa3ae8a64237b75d8db2914d6da942499e82f2f29afb9

SHA512
f165f90298acaf1210086234e1425fb8ede9bcab0c34fc82c927e82f5b435cdb67a67d1d4f23be1eea0c01cffaebc841102679eb66e7c97e678113545adc5947

Download Submit
memory/2428-11-0x00000000008A0000-0x00000000009A0000-memory.dmp

Filesize
1024KB

Download
memory/2428-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2428-13-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2480-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2480-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2480-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2480-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2480-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2480-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-9-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download
memory/2904-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2904-4-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2904-3-0x00000000002D0000-0x00000000002E3000-memory.dmp

Filesize
76KB

Download
memory/2904-1-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads