dde7dcf2831fc86f74315f05353ed60908fda5e8c8f2620fe160d63b266db471

General

Target

forvm.exe
Size

37KB
MD5

1c34d0c6964ad975af3dd63fa9282e2e
SHA1

4b1a295f48590c84880a458bbedeafc1512641ee
SHA256

dde7dcf2831fc86f74315f05353ed60908fda5e8c8f2620fe160d63b266db471
SHA512

8b8d5f608c87c8c9ce7a3d1571b77e2f2962b2ac332b474467fddd43902e9a56d1af4eadd5976caa6237c57a691b02f44d96ef2bd436b9e092c569185e9af5d5

Score

10^/10

evasion persistence suricata

Malware Config

Signatures

suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
suricata
Executes dropped EXE 1 IoCs

Processes:

tmp256C.tmp.exe

pid process

1968 tmp256C.tmp.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

372 netsh.exe

pid	process
1968	tmp256C.tmp.exe

pid	process
372	netsh.exe

Drops startup file 2 IoCs

Processes:

forvm.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\767dc25f03dd681bde2bda93c68cdea8.exe	forvm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\767dc25f03dd681bde2bda93c68cdea8.exe	forvm.exe

Loads dropped DLL 1 IoCs

Processes:

forvm.exe

pid process

1552 forvm.exe

pid	process
1552	forvm.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

forvm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\767dc25f03dd681bde2bda93c68cdea8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\forvm.exe\" .."	forvm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\767dc25f03dd681bde2bda93c68cdea8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\forvm.exe\" .."	forvm.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

forvm.exe

description	pid	process
Token: SeDebugPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe
Token: 33	1552	forvm.exe
Token: SeIncBasePriorityPrivilege	1552	forvm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

forvm.exe

description	pid	process	target process
PID 1552 wrote to memory of 372	1552	forvm.exe	netsh.exe
PID 1552 wrote to memory of 372	1552	forvm.exe	netsh.exe
PID 1552 wrote to memory of 372	1552	forvm.exe	netsh.exe
PID 1552 wrote to memory of 372	1552	forvm.exe	netsh.exe
PID 1552 wrote to memory of 1968	1552	forvm.exe	tmp256C.tmp.exe
PID 1552 wrote to memory of 1968	1552	forvm.exe	tmp256C.tmp.exe
PID 1552 wrote to memory of 1968	1552	forvm.exe	tmp256C.tmp.exe
PID 1552 wrote to memory of 1968	1552	forvm.exe	tmp256C.tmp.exe

C:\Users\Admin\AppData\Local\Temp\forvm.exe
"C:\Users\Admin\AppData\Local\Temp\forvm.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\forvm.exe" "forvm.exe" ENABLE
2⤵
- Modifies Windows Firewall
PID:372

C:\Users\Admin\AppData\Local\Temp\tmp256C.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp256C.tmp.exe"
2⤵
- Executes dropped EXE
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

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\tmp256C.tmp.exe
Filesize
53KB

MD5
d0a314fbbc8e3932366190b80d3a1d43

SHA1
9f5acdce5c4be66bce4d36d30dc0cc28cc607269

SHA256
b59b98e49c5a393691d1766623992d7b998b61a4f4420769c1431963146fdf6b

SHA512
15cda90b5bcd668b28a165cd83a165cb709b76cfcca21bd7918f6693022f93bafcb930dbbc8504c1ec9f47baa828ae47c58cf38b04ac1ec83911d126fe443d64

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp256C.tmp.exe
Filesize
53KB

MD5
d0a314fbbc8e3932366190b80d3a1d43

SHA1
9f5acdce5c4be66bce4d36d30dc0cc28cc607269

SHA256
b59b98e49c5a393691d1766623992d7b998b61a4f4420769c1431963146fdf6b

SHA512
15cda90b5bcd668b28a165cd83a165cb709b76cfcca21bd7918f6693022f93bafcb930dbbc8504c1ec9f47baa828ae47c58cf38b04ac1ec83911d126fe443d64

Download Submit
\Users\Admin\AppData\Local\Temp\tmp256C.tmp.exe
Filesize
53KB

MD5
d0a314fbbc8e3932366190b80d3a1d43

SHA1
9f5acdce5c4be66bce4d36d30dc0cc28cc607269

SHA256
b59b98e49c5a393691d1766623992d7b998b61a4f4420769c1431963146fdf6b

SHA512
15cda90b5bcd668b28a165cd83a165cb709b76cfcca21bd7918f6693022f93bafcb930dbbc8504c1ec9f47baa828ae47c58cf38b04ac1ec83911d126fe443d64

Download Submit
memory/372-56-0x0000000000000000-mapping.dmp

Download
memory/1552-54-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/1552-55-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-58-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/1968-60-0x0000000000000000-mapping.dmp

Download
memory/1968-63-0x0000000000DE0000-0x0000000000DF4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads