tofsee | 3310aa6e6f635f3e3610e897d48323758555304bd7bfa2c77473a2119cef2f86

General

Target

f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe
Size

14.3MB
MD5

f41244b3df60d807930f4c7b3096d0a7
SHA1

d0cbe5f91f407229da11bcd1cf3950544310987a
SHA256

3310aa6e6f635f3e3610e897d48323758555304bd7bfa2c77473a2119cef2f86
SHA512

31238ef37c39bedd4582ed9eb72aa6df2fad87ddbdae1f14803d0c58ab4b9de1c96c9140cdfc4d9ff11d06bab43abb2d9fd59bd798edb7abfae6a3d2b473531a
SSDEEP

49152:xM+SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSn:x

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\uhelixmm = "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

2704 netsh.exe

pid	process
2704	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\uhelixmm\ImagePath = "C:\\Windows\\SysWOW64\\uhelixmm\\namjcpue.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2684 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

namjcpue.exe

pid process

1952 namjcpue.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

namjcpue.exe

description pid process target process

PID 1952 set thread context of 2684 1952 namjcpue.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

2696 sc.exe
2076 sc.exe
2584 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2684	svchost.exe

pid	process
1952	namjcpue.exe

description	pid	process	target process
PID 1952 set thread context of 2684	1952	namjcpue.exe	svchost.exe

pid	process
2696	sc.exe
2076	sc.exe
2584	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exenamjcpue.exe

description	pid	process	target process
PID 2304 wrote to memory of 2944	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 2944	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 2944	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 2944	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 552	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 552	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 552	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 552	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	cmd.exe
PID 2304 wrote to memory of 2076	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2076	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2076	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2076	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2584	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2584	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2584	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2584	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2696	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2696	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2696	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 2304 wrote to memory of 2696	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	sc.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe
PID 2304 wrote to memory of 2704	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	netsh.exe
PID 2304 wrote to memory of 2704	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	netsh.exe
PID 2304 wrote to memory of 2704	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	netsh.exe
PID 2304 wrote to memory of 2704	2304	f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe	netsh.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe
PID 1952 wrote to memory of 2684	1952	namjcpue.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uhelixmm\
2⤵
PID:2944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\namjcpue.exe" C:\Windows\SysWOW64\uhelixmm\
2⤵
PID:552

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create uhelixmm binPath= "C:\Windows\SysWOW64\uhelixmm\namjcpue.exe /d\"C:\Users\Admin\AppData\Local\Temp\f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2076

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description uhelixmm "wifi internet conection"
2⤵
- Launches sc.exe
PID:2584

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start uhelixmm
2⤵
- Launches sc.exe
PID:2696

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:2704

C:\Windows\SysWOW64\uhelixmm\namjcpue.exe
C:\Windows\SysWOW64\uhelixmm\namjcpue.exe /d"C:\Users\Admin\AppData\Local\Temp\f41244b3df60d807930f4c7b3096d0a7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1952

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2684

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\namjcpue.exe
Filesize
11.8MB

MD5
bcb630d9ca3983237a6ce5026a8d052a

SHA1
767949e5b0851a677567853b71e33c7bef955508

SHA256
d3e01c1de0e626eac6ced209544af9b14d5511c5995c3601872cbf9a46d307c4

SHA512
33cef788aecd93556db20f46431f9be164917bbecd5b221046aa9123fd49ade313d9b86cd95dce27fff7aacb011fbe97a64a2fb397495e8e2c4cca8f00b161d9

Download Submit
memory/1952-8-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/1952-15-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1952-9-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2304-11-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2304-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2304-4-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2304-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2684-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads