tofsee | cb69feca957e765d0dd33ba69c7e17266641ead5805fb04f6d84232b6b796bf9

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 22:06

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General

Target

7e201f6d24fb8268d2e4ba7d0e2b3e67.exe
Size

11.7MB
MD5

7e201f6d24fb8268d2e4ba7d0e2b3e67
SHA1

e443a234b26eac5eb753af89b35898799801c717
SHA256

cb69feca957e765d0dd33ba69c7e17266641ead5805fb04f6d84232b6b796bf9
SHA512

e1d1e191cd7fe8a02c2df7c68763f6245a8126eae1814522eac220834cec4230a76af476cb3cba5e8f0c89c4bab97309a00fe6eb02e3f0f269bdf211d89e28ae
SSDEEP

3072:uBNmFjaoPAa5LqiM8h2pj3gKTf8dl4ghaF5+P9H:CwjaoB5LqiLh+j3gMfTCBl

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

176.111.174.19

defeatwax.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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\iimftdyc = "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

pid	Process
2736	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\iimftdyc\ImagePath = "C:\\Windows\\SysWOW64\\iimftdyc\\qaiumjsp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1376	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	qaiumjsp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 1376	2100	qaiumjsp.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2360	sc.exe
2688	sc.exe
2928	sc.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2716	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	28
PID 2080 wrote to memory of 2716	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	28
PID 2080 wrote to memory of 2716	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	28
PID 2080 wrote to memory of 2716	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	28
PID 2080 wrote to memory of 2844	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	30
PID 2080 wrote to memory of 2844	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	30
PID 2080 wrote to memory of 2844	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	30
PID 2080 wrote to memory of 2844	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	30
PID 2080 wrote to memory of 2360	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	32
PID 2080 wrote to memory of 2360	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	32
PID 2080 wrote to memory of 2360	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	32
PID 2080 wrote to memory of 2360	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	32
PID 2080 wrote to memory of 2688	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	34
PID 2080 wrote to memory of 2688	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	34
PID 2080 wrote to memory of 2688	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	34
PID 2080 wrote to memory of 2688	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	34
PID 2080 wrote to memory of 2928	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	37
PID 2080 wrote to memory of 2928	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	37
PID 2080 wrote to memory of 2928	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	37
PID 2080 wrote to memory of 2928	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	37
PID 2080 wrote to memory of 2736	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	39
PID 2080 wrote to memory of 2736	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	39
PID 2080 wrote to memory of 2736	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	39
PID 2080 wrote to memory of 2736	2080	7e201f6d24fb8268d2e4ba7d0e2b3e67.exe	39
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41
PID 2100 wrote to memory of 1376	2100	qaiumjsp.exe	41

C:\Users\Admin\AppData\Local\Temp\7e201f6d24fb8268d2e4ba7d0e2b3e67.exe
"C:\Users\Admin\AppData\Local\Temp\7e201f6d24fb8268d2e4ba7d0e2b3e67.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iimftdyc\
  2⤵
  PID:2716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qaiumjsp.exe" C:\Windows\SysWOW64\iimftdyc\
  2⤵
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iimftdyc binPath= "C:\Windows\SysWOW64\iimftdyc\qaiumjsp.exe /d\"C:\Users\Admin\AppData\Local\Temp\7e201f6d24fb8268d2e4ba7d0e2b3e67.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iimftdyc "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iimftdyc
  2⤵
  - Launches sc.exe
  PID:2928
- 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:2736

C:\Windows\SysWOW64\iimftdyc\qaiumjsp.exe
C:\Windows\SysWOW64\iimftdyc\qaiumjsp.exe /d"C:\Users\Admin\AppData\Local\Temp\7e201f6d24fb8268d2e4ba7d0e2b3e67.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:1376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
4.6MB

MD5
e2be28d40afca498a47080f3efb95e95

SHA1
e90a6d71916d58540b122978a38c68a701af1e36

SHA256
24a5d3e7a65d531e8ebaca67dbef5c6b485d4af26191c076848e5d54a6967c04

SHA512
0c983770485be000f708bbcf42a35439a8829a74eed0438f090786aab18a6bc0f1a1548c98bccb19018b629588251023c09135ccf7485202c4c2925c6cbd563f

Download Submit
C:\Windows\SysWOW64\iimftdyc\qaiumjsp.exe

Filesize
1.3MB

MD5
b3a4bbb6a1b1cf112e18d187da91ff23

SHA1
e60f27684c917040e4fbdfc3488a72c9114d2ead

SHA256
7fd9bfe5828902b723f89daea3b5a11592b08d4442e16dffbdc85a98df3ce752

SHA512
d14d3f99fe5b50c5a8bec4c4b694bd6bcbdae0366c55c2bb20bcaaa84bf6d100ff87596171dd1259b328bbac63521083be214e98091df151b730556e6ed3b501

Download Submit
memory/1376-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1376-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1376-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1376-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1376-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1376-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2080-8-0x0000000000400000-0x0000000002BF4000-memory.dmp

Filesize
40.0MB

Download
memory/2080-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

Filesize
1024KB

Download
memory/2080-4-0x0000000000400000-0x0000000002BF4000-memory.dmp

Filesize
40.0MB

Download
memory/2080-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2080-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2100-10-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2100-17-0x0000000000400000-0x0000000002BF4000-memory.dmp

Filesize
40.0MB

Download
memory/2100-18-0x0000000000400000-0x0000000002BF4000-memory.dmp

Filesize
40.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads