tofsee | 2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5

General

Target

2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe
Size

113KB
MD5

f065237fd3b6c12dae373cf7815a92e8
SHA1

047579f3b675f1cd67e300dc065b129bf63b118f
SHA256

2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5
SHA512

8462c2a3e8d7873103b7707219485f14d2b5d591f2c276eac90ff0fad91b9bb4cef82766a218e4404739a783e7da45c5fd08ae7450c43d054a4c44064c0a9275

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\iyjctpfx = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

kegdxtdi.exe

pid process

1176 kegdxtdi.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

656 netsh.exe

pid	process
1176	kegdxtdi.exe

pid	process
656	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\iyjctpfx\ImagePath = "C:\\Windows\\SysWOW64\\iyjctpfx\\kegdxtdi.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1684 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kegdxtdi.exe

description pid process target process

PID 1176 set thread context of 1684 1176 kegdxtdi.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

1320 sc.exe
2028 sc.exe
1912 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
1684	svchost.exe

description	pid	process	target process
PID 1176 set thread context of 1684	1176	kegdxtdi.exe	svchost.exe

pid	process
1320	sc.exe
2028	sc.exe
1912	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exekegdxtdi.exe

description	pid	process	target process
PID 1668 wrote to memory of 996	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 1448	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 1448	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 1448	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 1448	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	cmd.exe
PID 1668 wrote to memory of 1320	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1320	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1320	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1320	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 2028	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 2028	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 2028	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 2028	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1912	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1912	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1912	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 1912	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	sc.exe
PID 1668 wrote to memory of 656	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	netsh.exe
PID 1668 wrote to memory of 656	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	netsh.exe
PID 1668 wrote to memory of 656	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	netsh.exe
PID 1668 wrote to memory of 656	1668	2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe	netsh.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe
PID 1176 wrote to memory of 1684	1176	kegdxtdi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe
"C:\Users\Admin\AppData\Local\Temp\2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iyjctpfx\
2⤵
PID:996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kegdxtdi.exe" C:\Windows\SysWOW64\iyjctpfx\
2⤵
PID:1448

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create iyjctpfx binPath= "C:\Windows\SysWOW64\iyjctpfx\kegdxtdi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1320

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description iyjctpfx "wifi internet conection"
2⤵
- Launches sc.exe
PID:2028

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start iyjctpfx
2⤵
- Launches sc.exe
PID:1912

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:656

C:\Windows\SysWOW64\iyjctpfx\kegdxtdi.exe
C:\Windows\SysWOW64\iyjctpfx\kegdxtdi.exe /d"C:\Users\Admin\AppData\Local\Temp\2e7a988c2135655f43ba2622d9e3cec0cd082352be9a829dee43772a4db5a7a5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1176

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1684

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kegdxtdi.exe
Filesize
10.9MB

MD5
58f9786d036867bf7472a37420f129d4

SHA1
c19a3ae45aa72ae073879f8aef57c2120aa38653

SHA256
d4a5a246b54c061ab7579ef1d1700faafd90c67ccfa58d0344f3dfab9c890de9

SHA512
64fa30968e6b7c5339bb26f5b079babf6fbaee6f0de42d74f00006925a0f18bd9ac7bf67b5838da14e9d70115ace99fb01ae294d8119d0b9c921ff82660e6029

Download Submit
C:\Windows\SysWOW64\iyjctpfx\kegdxtdi.exe
Filesize
10.9MB

MD5
58f9786d036867bf7472a37420f129d4

SHA1
c19a3ae45aa72ae073879f8aef57c2120aa38653

SHA256
d4a5a246b54c061ab7579ef1d1700faafd90c67ccfa58d0344f3dfab9c890de9

SHA512
64fa30968e6b7c5339bb26f5b079babf6fbaee6f0de42d74f00006925a0f18bd9ac7bf67b5838da14e9d70115ace99fb01ae294d8119d0b9c921ff82660e6029

Download Submit
memory/656-63-0x0000000000000000-mapping.dmp

Download
memory/996-57-0x0000000000000000-mapping.dmp

Download
memory/1176-72-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1176-66-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1320-60-0x0000000000000000-mapping.dmp

Download
memory/1448-58-0x0000000000000000-mapping.dmp

Download
memory/1668-64-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1668-54-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1668-56-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1668-55-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1684-68-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1684-70-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1684-71-0x0000000000089A6B-mapping.dmp

Download
memory/1684-77-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1684-78-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1912-62-0x0000000000000000-mapping.dmp

Download
memory/2028-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads