4580b172af2daef110ed5ae23849ff3a43f8a704c5ddb75f7f5739f45ba83cfe

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2023 17:01

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General

Target

b9eae9250c31acexeexeexeex.exe
Size

288KB
MD5

b9eae9250c31acb967c38beefa3e61a0
SHA1

cf274797fc25243cc2eb67b375847a7710f18027
SHA256

4580b172af2daef110ed5ae23849ff3a43f8a704c5ddb75f7f5739f45ba83cfe
SHA512

5a1fc87bc1792aee844c0c77261b99e58006f0450e258fbff65aba2a11ea56d1078a7fbaccb0487de1a41e506a3409ec1fcb06ad4c154907b88973ae49554f53
SSDEEP

6144:OQ+Tyfx4NF67Sbq2nW82X45gc3BaLZVS0mOoC8zbzDie:OQMyfmNFHfnWfhLZVHmOog

Score

7^/10

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\Control Panel\International\Geo\Nation	b9eae9250c31acexeexeexeex.exe

Executes dropped EXE 2 IoCs

pid	Process
3972	lsassys.exe
652	lsassys.exe

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

System Information Discovery
T1082

Modifies registry class 30 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\open\command	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\open\command	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\open	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\ = "Application"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\runas	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\runas\command\IsolatedCommand = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\runas	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\DefaultIcon	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\runas\command\ = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Posix\\lsassys.exe\" /START \"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Posix\\lsassys.exe\" /START \"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\DefaultIcon\ = "%1"	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\runas\command\ = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\Local Settings	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\DefaultIcon\ = "%1"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\open\command\IsolatedCommand = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\runas\command	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\open	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\ = "halnt"	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\Content-Type = "application/x-msdownload"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\Content-Type = "application/x-msdownload"	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\halnt\shell\runas\command	b9eae9250c31acexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\DefaultIcon	b9eae9250c31acexeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	b9eae9250c31acexeexeexeex.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3972	lsassys.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 3972	1368	b9eae9250c31acexeexeexeex.exe	84
PID 1368 wrote to memory of 3972	1368	b9eae9250c31acexeexeexeex.exe	84
PID 1368 wrote to memory of 3972	1368	b9eae9250c31acexeexeexeex.exe	84
PID 3972 wrote to memory of 652	3972	lsassys.exe	85
PID 3972 wrote to memory of 652	3972	lsassys.exe	85
PID 3972 wrote to memory of 652	3972	lsassys.exe	85

C:\Users\Admin\AppData\Local\Temp\b9eae9250c31acexeexeexeex.exe
"C:\Users\Admin\AppData\Local\Temp\b9eae9250c31acexeexeexeex.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3972
- - C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe"
    3⤵
    - Executes dropped EXE
    PID:652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe

Filesize
288KB

MD5
df42d33b30b8803a5349608cc89feca8

SHA1
71be07f65a7df7f069d2d3eacf091eba929d8cf9

SHA256
a9a454449e9914725e5e9884f42dac4df530b7333519d68723c628228c0f48cf

SHA512
809bce8d12445ac5765db60f1516d6adaa65d5433d882647cf4d0954b1d70b337324fce23ff5319d14d5552244b66ab91ed894610832aec128ca36bf327e9a29

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe

Filesize
288KB

MD5
df42d33b30b8803a5349608cc89feca8

SHA1
71be07f65a7df7f069d2d3eacf091eba929d8cf9

SHA256
a9a454449e9914725e5e9884f42dac4df530b7333519d68723c628228c0f48cf

SHA512
809bce8d12445ac5765db60f1516d6adaa65d5433d882647cf4d0954b1d70b337324fce23ff5319d14d5552244b66ab91ed894610832aec128ca36bf327e9a29

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe

Filesize
288KB

MD5
df42d33b30b8803a5349608cc89feca8

SHA1
71be07f65a7df7f069d2d3eacf091eba929d8cf9

SHA256
a9a454449e9914725e5e9884f42dac4df530b7333519d68723c628228c0f48cf

SHA512
809bce8d12445ac5765db60f1516d6adaa65d5433d882647cf4d0954b1d70b337324fce23ff5319d14d5552244b66ab91ed894610832aec128ca36bf327e9a29

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Posix\lsassys.exe

Filesize
288KB

MD5
df42d33b30b8803a5349608cc89feca8

SHA1
71be07f65a7df7f069d2d3eacf091eba929d8cf9

SHA256
a9a454449e9914725e5e9884f42dac4df530b7333519d68723c628228c0f48cf

SHA512
809bce8d12445ac5765db60f1516d6adaa65d5433d882647cf4d0954b1d70b337324fce23ff5319d14d5552244b66ab91ed894610832aec128ca36bf327e9a29

Download Submit