tofsee | 32286087d4e5a88e15e2d34114b10047826640627628d7b269d37eef35585db7

General

Target

f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe
Size

11.3MB
MD5

f2c2dfad2a7c617f933121023f9615a0
SHA1

2413e1d32855aaaef23d75cc7da5e73258f59c0f
SHA256

32286087d4e5a88e15e2d34114b10047826640627628d7b269d37eef35585db7
SHA512

0a235f74cceebc2fd51d8472762091a958d6d43ca00bedad058cee00fa48b90e063eff78ac60610668e1a42427d25d105c8d4625079a7753e29b1c441c46eda0
SSDEEP

98304:nNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllH:NW

Score

10^/10

tofsee evasion persistence trojan

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\guhunvc = "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

2684 netsh.exe

pid	process
2684	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\guhunvc\ImagePath = "C:\\Windows\\SysWOW64\\guhunvc\\myxlwgoi.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2544 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

myxlwgoi.exe

pid process

2944 myxlwgoi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

myxlwgoi.exe

description pid process target process

PID 2944 set thread context of 2544 2944 myxlwgoi.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

2672 sc.exe
2556 sc.exe
2440 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2544	svchost.exe

pid	process
2944	myxlwgoi.exe

description	pid	process	target process
PID 2944 set thread context of 2544	2944	myxlwgoi.exe	svchost.exe

pid	process
2672	sc.exe
2556	sc.exe
2440	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exemyxlwgoi.exe

description	pid	process	target process
PID 1444 wrote to memory of 2524	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2524	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2524	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2524	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2572	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2572	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2572	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2572	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2672	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2672	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2672	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2672	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2556	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2556	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2556	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2556	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2440	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2440	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2440	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2440	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2684	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2684	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2684	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2684	1444	f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe	netsh.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe
PID 2944 wrote to memory of 2544	2944	myxlwgoi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\guhunvc\
2⤵
PID:2524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\myxlwgoi.exe" C:\Windows\SysWOW64\guhunvc\
2⤵
PID:2572

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create guhunvc binPath= "C:\Windows\SysWOW64\guhunvc\myxlwgoi.exe /d\"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2672

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description guhunvc "wifi internet conection"
2⤵
- Launches sc.exe
PID:2556

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start guhunvc
2⤵
- Launches sc.exe
PID:2440

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:2684

C:\Windows\SysWOW64\guhunvc\myxlwgoi.exe
C:\Windows\SysWOW64\guhunvc\myxlwgoi.exe /d"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2944

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2544

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\myxlwgoi.exe
Filesize
14.7MB

MD5
ff91d2da2b943d496422957aff8f56c7

SHA1
87d6c6c5c04a8a223ce8c20759d265173e5c3dbb

SHA256
5ff8b09c0012c205e084ce72b9acb688875484f8e2ec7b6ecae3e872d8fe6fdf

SHA512
1290a7e2e1491666e7b1c84b0c09a0316d0ff8928ced4b2882105360b75ff34791ff3d6a0dc408460cd7d78e1818fcd93fd39d34b9a96147b23428b7b3ec3419

Download Submit
memory/1444-1-0x0000000003860000-0x0000000003960000-memory.dmp

Filesize
1024KB

Download
memory/1444-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1444-4-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1444-6-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2544-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2544-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-9-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2944-15-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2944-17-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads