Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
31/05/2024, 15:53
Behavioral task
behavioral1
Sample
bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe
Resource
win10v2004-20240426-en
General
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Target
bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe
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Size
51KB
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MD5
9afc3bd7af72c151fb81c7af5a17424e
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SHA1
810c2f270e799e6e0dff0f007fcee2b95714cb79
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SHA256
bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22
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SHA512
8a8c4d06ad91fbc4ed3039a30bf85c78b674b95f9c6b0c3ee40eda9df4d82a5d78e8e50ca1f0010f09a7d6df52e19ad617da381c4f6e38fb5f6a036a73cdcd99
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SSDEEP
768:buDOw9UiaoWUB2preAr+OfjRW00S16avdrQFiLjJvtXm:buDOw9aWifVgoc+vXm
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe -
Executes dropped EXE 1 IoCs
pid Process 4828 lossy.exe -
resource yara_rule behavioral2/memory/3188-0-0x0000000008000000-0x000000000800F000-memory.dmp upx behavioral2/files/0x000800000002342a-13.dat upx behavioral2/memory/4828-18-0x0000000008000000-0x000000000800F000-memory.dmp upx behavioral2/memory/3188-17-0x0000000008000000-0x000000000800F000-memory.dmp upx behavioral2/memory/4828-27-0x0000000008000000-0x000000000800F000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3188 wrote to memory of 4828 3188 bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe 84 PID 3188 wrote to memory of 4828 3188 bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe 84 PID 3188 wrote to memory of 4828 3188 bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe"C:\Users\Admin\AppData\Local\Temp\bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3188 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:4828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
51KB
MD5d69346b0de0d57230c0be79ec3e37e1f
SHA1e37bbc3e4b4145d2d1fd7c16aea938b4e18507af
SHA256272d5f2cf98547b905cd158599fa03c23658b4ad968e4755b9fa48234590a9b6
SHA5124b4c4f6cac7afdf9d4c82c09727292476d153b6d9f7e8d7f8bafe9eb2a5bde99e50593cff9432347db63b7bbced8b48541ab8e61da37fb442bc02eaab43b5eb1