Analysis
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max time kernel
125s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 03:09
Behavioral task
behavioral1
Sample
Guna.UI2.dll
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Guna.UI2.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral3
Sample
HtmlAgilityPack.dll
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
HtmlAgilityPack.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
Newtonsoft.Json.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
Newtonsoft.Json.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
Valhalla.exe
Resource
win7-20240220-en
Behavioral task
behavioral8
Sample
Valhalla.exe
Resource
win10v2004-20240508-en
General
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Target
Valhalla.exe
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Size
2.8MB
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MD5
ae1d2fccf71b461a1ef6858d44f1ea2d
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SHA1
ab31f301d14ffa3fd81e1b942db7f98c0b8d96f7
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SHA256
d43381039f61f85a8ac41e951ae0c399faaacb6b381769456cb23f3dc04ded50
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SHA512
0205926b299ab3dafbcd55bf7b96f6870b4f797182996671024f656cf58fc42622140d7946d27409f580c8f033375c5104ba3daec1bc8af828614f9b805e9df8
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SSDEEP
49152:ff/Jm2vkRIjsJWJuB3jluCQ1ud1mb2RQzl4wRScOtImKLh1:ngckRIaDB3jlq9bAQzl4wIy1
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 1 IoCs
Processes:
resource yara_rule behavioral8/memory/1296-6-0x0000000006150000-0x0000000006364000-memory.dmp family_agenttesla -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
Valhalla.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS Valhalla.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer Valhalla.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion Valhalla.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Valhalla.exedescription pid process Token: SeDebugPrivilege 1296 Valhalla.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Valhalla.exe"C:\Users\Admin\AppData\Local\Temp\Valhalla.exe"1⤵
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3404,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4532 /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1296-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmpFilesize
4KB
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memory/1296-1-0x00000000009B0000-0x0000000000C8E000-memory.dmpFilesize
2.9MB
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memory/1296-2-0x0000000005BA0000-0x0000000006144000-memory.dmpFilesize
5.6MB
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memory/1296-3-0x00000000055F0000-0x0000000005682000-memory.dmpFilesize
584KB
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memory/1296-4-0x0000000074F40000-0x00000000756F0000-memory.dmpFilesize
7.7MB
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memory/1296-5-0x00000000055B0000-0x00000000055BA000-memory.dmpFilesize
40KB
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memory/1296-6-0x0000000006150000-0x0000000006364000-memory.dmpFilesize
2.1MB
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memory/1296-7-0x00000000071F0000-0x00000000072E8000-memory.dmpFilesize
992KB
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memory/1296-8-0x00000000073B0000-0x0000000007462000-memory.dmpFilesize
712KB
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memory/1296-10-0x0000000074F40000-0x00000000756F0000-memory.dmpFilesize
7.7MB
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memory/1296-9-0x0000000007320000-0x0000000007342000-memory.dmpFilesize
136KB
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memory/1296-11-0x0000000008C10000-0x0000000008F64000-memory.dmpFilesize
3.3MB
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memory/1296-13-0x00000000090D0000-0x00000000090E2000-memory.dmpFilesize
72KB
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memory/1296-14-0x000000000A290000-0x000000000A2CC000-memory.dmpFilesize
240KB
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memory/1296-16-0x0000000074F40000-0x00000000756F0000-memory.dmpFilesize
7.7MB