tofsee | 74aa197cf71011f46513d60e9dca195b5e6887716e92c48226009deb8d029e43

Analysis

max time kernel
0s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 19:12

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General

Target
37fbcc89b7b2cb60f0df3996739687d9.exe
Size 12.8MB
Sample240110-xwsp3sebgr
SHA256 74aa197cf71011f46513d60e9dca195b5e6887716e92c48226009deb8d029e43
MD5 37fbcc89b7b2cb60f0df3996739687d9
SHA1 5fbc822016fd18425a2e4d765bb8eb26b01679ae
SHA512 f11be356b425c4f9d62750ffa930cb9d5712d70895081f47304fa877c2914d1cb8e76a35cd5b4af79bea3a3484afffbba175518339c0e66e8fbe6b4c6343e338
SSDEEP 49152:Ij5555555555555555555555555555555555555555555555555555555555555z:
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7
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 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
3792	netsh.exe

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2404	sc.exe
3108	sc.exe
1884	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\37fbcc89b7b2cb60f0df3996739687d9.exe
"C:\Users\Admin\AppData\Local\Temp\37fbcc89b7b2cb60f0df3996739687d9.exe"
1⤵
PID:800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eflzmjzt\
  2⤵
  PID:3252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkxxaldy.exe" C:\Windows\SysWOW64\eflzmjzt\
  2⤵
  PID:3828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eflzmjzt binPath= "C:\Windows\SysWOW64\eflzmjzt\dkxxaldy.exe /d\"C:\Users\Admin\AppData\Local\Temp\37fbcc89b7b2cb60f0df3996739687d9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eflzmjzt "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eflzmjzt
  2⤵
  - Launches sc.exe
  PID:3108
- 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:3792

C:\Windows\SysWOW64\eflzmjzt\dkxxaldy.exe
C:\Windows\SysWOW64\eflzmjzt\dkxxaldy.exe /d"C:\Users\Admin\AppData\Local\Temp\37fbcc89b7b2cb60f0df3996739687d9.exe"
1⤵
PID:2760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

dkxxaldy.exe

Path C:\Users\Admin\AppData\Local\Temp\dkxxaldy.exe
Size 59KB
SHA256 4c455aa90d84f199a348e5c397c038dec711760460d5621ad8dc7e16d92ae65d
MD5 efac6726bd4e10caf586f23a2dbc6db8
SHA1 4dff3151fea32e34ef15180a11604dc56f7ff0b1
SHA512 f40bac8c7a82503f9af8d9635b0b29915657c2efdc5a200eaa0e8a8909cd36dbf6355f96787fd64b6d926e358953e70f68d33ac1647d5d5148fd37374815eabf
SSDEEP 1536:yP7wGHQevDF1aH7YNFSkCBTY9BURsoghZhiHl6ZhvXQuRs:sHDDF1+SrkScsog8UZhfV2
MD5 SHA1 SHA512 SSDEEP

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dkxxaldy.exe

Path C:\Windows\SysWOW64\eflzmjzt\dkxxaldy.exe
Size 14KB
SHA256 4e7a7df55aeb075fd02fa0656ac8db72bda9f93108019ca7b28395c772464af6
MD5 5f34a932568d040494d97292f7520b80
SHA1 8f579ff294fbff35462f85f434a48e946636c6a7
SHA512 7d2b5771f753b4014abae6523e56841527ecece5188df14e6eda04f1265165da4f5542a70b1329763300e9f86a0bdb9c3105538e04b13f4c90b6aace817511ac
SSDEEP 192:1qHQjCnmms5EwF1ehINSASZlh17RSuY9As3k:1qHQunmms5EwGmNxkljRSuYegk
MD5 SHA1 SHA512 SSDEEP

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memory/800-15-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/800-1-0x0000000002160000-0x0000000002161000-memory.dmp

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memory/800-3-0x0000000002170000-0x0000000002171000-memory.dmp

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memory/800-0-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/800-2-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/2760-7-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/2760-12-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/2760-8-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

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memory/4348-14-0x0000000000D00000-0x0000000000D15000-memory.dmp

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memory/4348-10-0x0000000000D00000-0x0000000000D15000-memory.dmp

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memory/4348-16-0x0000000000D00000-0x0000000000D15000-memory.dmp

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memory/4348-17-0x0000000000D00000-0x0000000000D15000-memory.dmp

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memory/4348-18-0x0000000000D00000-0x0000000000D15000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads