tofsee | 100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37

General

Target

100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe
Size

316KB
MD5

5c3ecbbd07a3a9ea27ab0bddb1a6176d
SHA1

171a1e5ad3fb212af8e30d73a70338c319b4f346
SHA256

100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37
SHA512

0a09c1313c03249c72f19ffe84cb5c3758b9f1394f82aaac24f969009e21b5647cf9af3b3f35703a27c8496427692a8c715c72ac3bd9f918f7cb6ccf21dc8465

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

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\hhkdeaew = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

plflrtlc.exe

pid process

1668 plflrtlc.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

336 netsh.exe

pid	process
1668	plflrtlc.exe

pid	process
336	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\hhkdeaew\ImagePath = "C:\\Windows\\SysWOW64\\hhkdeaew\\plflrtlc.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1760 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

plflrtlc.exe

description pid process target process

PID 1668 set thread context of 1760 1668 plflrtlc.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

1176 sc.exe
1956 sc.exe
876 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1760	svchost.exe

description	pid	process	target process
PID 1668 set thread context of 1760	1668	plflrtlc.exe	svchost.exe

pid	process
1176	sc.exe
1956	sc.exe
876	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exeplflrtlc.exe

description	pid	process	target process
PID 904 wrote to memory of 608	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 608	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 608	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 608	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 1208	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 1208	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 1208	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 1208	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	cmd.exe
PID 904 wrote to memory of 1176	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1176	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1176	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1176	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1956	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1956	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1956	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 1956	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 876	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 876	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 876	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 876	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	sc.exe
PID 904 wrote to memory of 336	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	netsh.exe
PID 904 wrote to memory of 336	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	netsh.exe
PID 904 wrote to memory of 336	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	netsh.exe
PID 904 wrote to memory of 336	904	100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe	netsh.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe
PID 1668 wrote to memory of 1760	1668	plflrtlc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe
"C:\Users\Admin\AppData\Local\Temp\100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:904

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hhkdeaew\
2⤵
PID:608

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\plflrtlc.exe" C:\Windows\SysWOW64\hhkdeaew\
2⤵
PID:1208

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create hhkdeaew binPath= "C:\Windows\SysWOW64\hhkdeaew\plflrtlc.exe /d\"C:\Users\Admin\AppData\Local\Temp\100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1176

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description hhkdeaew "wifi internet conection"
2⤵
- Launches sc.exe
PID:1956

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start hhkdeaew
2⤵
- Launches sc.exe
PID:876

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:336

C:\Windows\SysWOW64\hhkdeaew\plflrtlc.exe
C:\Windows\SysWOW64\hhkdeaew\plflrtlc.exe /d"C:\Users\Admin\AppData\Local\Temp\100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

New Service

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\plflrtlc.exe
Filesize
10.1MB

MD5
2de28a5d2387c45511d0a9c49b057d43

SHA1
b24631580fde4fbee0e4f83da5e93a0db776f9ea

SHA256
7b4daa9b35240dcfbe8f21418308111c8f43a7c50a0a6de227ae724ff8a47d48

SHA512
a9e0ddb68b67ed9a843d1280606c8efecbdef20d337b06a13b4f3e99c20d724e19ff461c1932d91de18399eed7a099e1396bcef62795f8325ddf01e36defc099

Download Submit
C:\Windows\SysWOW64\hhkdeaew\plflrtlc.exe
Filesize
10.1MB

MD5
2de28a5d2387c45511d0a9c49b057d43

SHA1
b24631580fde4fbee0e4f83da5e93a0db776f9ea

SHA256
7b4daa9b35240dcfbe8f21418308111c8f43a7c50a0a6de227ae724ff8a47d48

SHA512
a9e0ddb68b67ed9a843d1280606c8efecbdef20d337b06a13b4f3e99c20d724e19ff461c1932d91de18399eed7a099e1396bcef62795f8325ddf01e36defc099

Download Submit
memory/336-64-0x0000000000000000-mapping.dmp

Download
memory/608-56-0x0000000000000000-mapping.dmp

Download
memory/876-63-0x0000000000000000-mapping.dmp

Download
memory/904-65-0x0000000000400000-0x00000000052AF000-memory.dmp

Filesize
78.7MB

Download
memory/904-55-0x00000000751C1000-0x00000000751C3000-memory.dmp

Filesize
8KB

Download
memory/904-57-0x00000000002A2000-0x00000000002B1000-memory.dmp

Filesize
60KB

Download
memory/904-58-0x0000000000400000-0x00000000052AF000-memory.dmp

Filesize
78.7MB

Download
memory/904-54-0x00000000002A2000-0x00000000002B1000-memory.dmp

Filesize
60KB

Download
memory/1176-61-0x0000000000000000-mapping.dmp

Download
memory/1208-59-0x0000000000000000-mapping.dmp

Download
memory/1668-68-0x0000000005401000-0x0000000005410000-memory.dmp

Filesize
60KB

Download
memory/1668-75-0x0000000005401000-0x0000000005410000-memory.dmp

Filesize
60KB

Download
memory/1668-78-0x0000000000400000-0x00000000052AF000-memory.dmp

Filesize
78.7MB

Download
memory/1760-70-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1760-72-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1760-73-0x0000000000089A6B-mapping.dmp

Download
memory/1760-79-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1760-80-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1956-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads