tofsee | 3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455

General

Target

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe
Size

104KB
MD5

67260c5c5215244985a54f8c8092bc8d
SHA1

5d8c9edaee2219781a8488f21fdb1e193b8dc8a6
SHA256

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455
SHA512

f31c7f275b42366eed39d5517be6a406645929c92bc6a471a1ebbc83ed1318c0c23982dca33b3351fd2088a335b213ef3db45fa6ba025c00b13a5427ae13e2df

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\fiqkthbe = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

jqddgrje.exe

pid process

1832 jqddgrje.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2008 netsh.exe

pid	process
1832	jqddgrje.exe

pid	process
2008	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\fiqkthbe\ImagePath = "C:\\Windows\\SysWOW64\\fiqkthbe\\jqddgrje.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1128 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jqddgrje.exe

description pid process target process

PID 1832 set thread context of 1128 1832 jqddgrje.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

1116 sc.exe
2028 sc.exe
1324 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
1128	svchost.exe

description	pid	process	target process
PID 1832 set thread context of 1128	1832	jqddgrje.exe	svchost.exe

pid	process
1116	sc.exe
2028	sc.exe
1324	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exejqddgrje.exe

description	pid	process	target process
PID 1672 wrote to memory of 876	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 876	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 876	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 876	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 964	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 964	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 964	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 964	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	cmd.exe
PID 1672 wrote to memory of 1324	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1324	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1324	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1324	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1116	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1116	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1116	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 1116	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 2028	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 2028	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 2028	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 2028	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	sc.exe
PID 1672 wrote to memory of 2008	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	netsh.exe
PID 1672 wrote to memory of 2008	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	netsh.exe
PID 1672 wrote to memory of 2008	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	netsh.exe
PID 1672 wrote to memory of 2008	1672	3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe	netsh.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe
PID 1832 wrote to memory of 1128	1832	jqddgrje.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe
"C:\Users\Admin\AppData\Local\Temp\3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fiqkthbe\
2⤵
PID:876

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqddgrje.exe" C:\Windows\SysWOW64\fiqkthbe\
2⤵
PID:964

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fiqkthbe binPath= "C:\Windows\SysWOW64\fiqkthbe\jqddgrje.exe /d\"C:\Users\Admin\AppData\Local\Temp\3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1324

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fiqkthbe "wifi internet conection"
2⤵
- Launches sc.exe
PID:1116

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fiqkthbe
2⤵
- Launches sc.exe
PID:2028

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:2008

C:\Windows\SysWOW64\fiqkthbe\jqddgrje.exe
C:\Windows\SysWOW64\fiqkthbe\jqddgrje.exe /d"C:\Users\Admin\AppData\Local\Temp\3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1128

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\jqddgrje.exe
Filesize
14.2MB

MD5
547018a92c5d07ddef84793620563f8d

SHA1
6818c15a06bc1854bea3546237959d46ecef795a

SHA256
b199486bb23dde88b1768cd2df95a8db1a57bc505715a8c2239e1f81c5b96f1d

SHA512
f8535f014bd1e0aaa5f6314d86e72ab57155d09e80612022485fab757b91efc881079f64341345afe3a285e64a1fc868601125a9b33b46eb7af4d4d8eebc7419

Download Submit
C:\Windows\SysWOW64\fiqkthbe\jqddgrje.exe
Filesize
14.2MB

MD5
547018a92c5d07ddef84793620563f8d

SHA1
6818c15a06bc1854bea3546237959d46ecef795a

SHA256
b199486bb23dde88b1768cd2df95a8db1a57bc505715a8c2239e1f81c5b96f1d

SHA512
f8535f014bd1e0aaa5f6314d86e72ab57155d09e80612022485fab757b91efc881079f64341345afe3a285e64a1fc868601125a9b33b46eb7af4d4d8eebc7419

Download Submit
memory/876-56-0x0000000000000000-mapping.dmp

Download
memory/964-57-0x0000000000000000-mapping.dmp

Download
memory/1116-60-0x0000000000000000-mapping.dmp

Download
memory/1128-66-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1128-68-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1128-69-0x0000000000089A6B-mapping.dmp

Download
memory/1128-72-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1128-74-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1128-75-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1324-59-0x0000000000000000-mapping.dmp

Download
memory/1672-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1672-54-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1832-63-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2008-65-0x0000000000000000-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