tofsee | 8dea29eb868a36b9a4a8d00e8aa9a8e68f720cb50ebdab0b6dbb650ba1c7935c

General

Target

ae671935e94e00c6ac5cd59a91401339.exe
Size

11.7MB
MD5

ae671935e94e00c6ac5cd59a91401339
SHA1

946abd7d7fce2ae16ddaf16349667e225762dfe4
SHA256

8dea29eb868a36b9a4a8d00e8aa9a8e68f720cb50ebdab0b6dbb650ba1c7935c
SHA512

7e0f55480e102510d6d7edb2c3400f61feefd56557debf03ff0fa7d9ffab50b76d1872f9b65f5f2a39a0020c7b70c049f812c1e253689a7379cf1ca937f5fe32

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

qlphxiki.exe

pid process

988 qlphxiki.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

936 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qlphxiki.exe

description pid process target process

PID 988 set thread context of 936 988 qlphxiki.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
988	qlphxiki.exe

pid	process
936	svchost.exe

description	pid	process	target process
PID 988 set thread context of 936	988	qlphxiki.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ae671935e94e00c6ac5cd59a91401339.exeqlphxiki.exe

description	pid	process	target process
PID 1916 wrote to memory of 1624	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 1624	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 1624	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 1624	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 108	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 108	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 108	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 108	1916	ae671935e94e00c6ac5cd59a91401339.exe	cmd.exe
PID 1916 wrote to memory of 112	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 112	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 112	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 112	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1896	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1896	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1896	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1896	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1640	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1640	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1640	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1640	1916	ae671935e94e00c6ac5cd59a91401339.exe	sc.exe
PID 1916 wrote to memory of 1464	1916	ae671935e94e00c6ac5cd59a91401339.exe	netsh.exe
PID 1916 wrote to memory of 1464	1916	ae671935e94e00c6ac5cd59a91401339.exe	netsh.exe
PID 1916 wrote to memory of 1464	1916	ae671935e94e00c6ac5cd59a91401339.exe	netsh.exe
PID 1916 wrote to memory of 1464	1916	ae671935e94e00c6ac5cd59a91401339.exe	netsh.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe
PID 988 wrote to memory of 936	988	qlphxiki.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ae671935e94e00c6ac5cd59a91401339.exe
"C:\Users\Admin\AppData\Local\Temp\ae671935e94e00c6ac5cd59a91401339.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1916

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cagztihu\
2⤵
PID:1624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qlphxiki.exe" C:\Windows\SysWOW64\cagztihu\
2⤵
PID:108

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cagztihu binPath= "C:\Windows\SysWOW64\cagztihu\qlphxiki.exe /d\"C:\Users\Admin\AppData\Local\Temp\ae671935e94e00c6ac5cd59a91401339.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:112

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cagztihu "wifi internet conection"
2⤵
PID:1896

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cagztihu
2⤵
PID:1640

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⤵
PID:1464

C:\Windows\SysWOW64\cagztihu\qlphxiki.exe
C:\Windows\SysWOW64\cagztihu\qlphxiki.exe /d"C:\Users\Admin\AppData\Local\Temp\ae671935e94e00c6ac5cd59a91401339.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Deletes itself
PID:936

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\qlphxiki.exe
MD5
6567fa186466ad8191ea93aabbf2318e

SHA1
a0ddaee841f2d8b5581b2238de4e29a257a7b8a8

SHA256
b765e89f83b2dcec05ae6b36e9e701ff2b825edbde8388078dee4401a9919bcc

SHA512
b72b0ca54805500540632c108ec4fca9a5fd9684d17878291b715dc7ea8a5c5b0d509d7be6706accb3172ec84ce3b7ea3b6d239303ff9950890d01282b5c975e

Download Submit
C:\Windows\SysWOW64\cagztihu\qlphxiki.exe
MD5
6567fa186466ad8191ea93aabbf2318e

SHA1
a0ddaee841f2d8b5581b2238de4e29a257a7b8a8

SHA256
b765e89f83b2dcec05ae6b36e9e701ff2b825edbde8388078dee4401a9919bcc

SHA512
b72b0ca54805500540632c108ec4fca9a5fd9684d17878291b715dc7ea8a5c5b0d509d7be6706accb3172ec84ce3b7ea3b6d239303ff9950890d01282b5c975e

Download Submit
memory/108-6-0x0000000000000000-mapping.dmp

Download
memory/112-8-0x0000000000000000-mapping.dmp

Download
memory/936-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/936-16-0x00000000000C9A6B-mapping.dmp

Download
memory/988-14-0x0000000004B20000-0x0000000004B31000-memory.dmp

Filesize
68KB

Download
memory/988-13-0x00000000048AB000-0x00000000048AC000-memory.dmp

Filesize
4KB

Download
memory/1464-12-0x0000000000000000-mapping.dmp

Download
memory/1624-4-0x0000000000000000-mapping.dmp

Download
memory/1640-10-0x0000000000000000-mapping.dmp

Download
memory/1896-9-0x0000000000000000-mapping.dmp

Download
memory/1916-2-0x00000000047EB000-0x00000000047EC000-memory.dmp

Filesize
4KB

Download
memory/1916-3-0x0000000006060000-0x0000000006071000-memory.dmp

Filesize
68KB

Download

Analysis

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