Analysis
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max time kernel
147s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
14-12-2023 08:15
Behavioral task
behavioral1
Sample
Syences.exe
Resource
win7-20231130-en
General
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Target
Syences.exe
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Size
3.1MB
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MD5
f0207a4a17b47cba7d87142363b12477
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SHA1
c2203e69e92e6ba6394e6f711429fadf8b65845e
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SHA256
d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09
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SHA512
35f37bb38a070220dbe9f6511ab5bf8bca07fae46b5edefa5356a9294fc98b97735719410887b40776a7232711620f5c92f6bb45a7a54d597faef675196da810
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SSDEEP
49152:Kvpt62XlaSFNWPjljiFa2RoUYIAunRJ65bR3LoGdcTHHB72eh2NT:Kvj62XlaSFNWPjljiFXRoUYIAunRJ67
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:4782
4b2195e4-fb92-4868-914b-7332837f4388
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encryption_key
26FFD71DADD23C1D90404D858942E1C47093C7CF
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install_name
Synecs.exe
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log_directory
pergs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar payload 3 IoCs
resource yara_rule behavioral2/memory/2804-0-0x0000000000530000-0x0000000000856000-memory.dmp family_quasar behavioral2/files/0x00060000000231e3-6.dat family_quasar behavioral2/files/0x00060000000231e3-5.dat family_quasar -
Executes dropped EXE 1 IoCs
pid Process 2300 Synecs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2804 Syences.exe Token: SeDebugPrivilege 2300 Synecs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2300 Synecs.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2804 wrote to memory of 2300 2804 Syences.exe 88 PID 2804 wrote to memory of 2300 2804 Syences.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\Syences.exe"C:\Users\Admin\AppData\Local\Temp\Syences.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Users\Admin\AppData\Roaming\SubDir\Synecs.exe"C:\Users\Admin\AppData\Roaming\SubDir\Synecs.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2300
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1.9MB
MD5f6e7f94b768e105a8f9ad2360b51b658
SHA1a0e121e1747a8623010ca53ee5cc5fb31f61420c
SHA25646f40e435e6c00c0b355a8fdc711a20cbb8998c48221a038fe818745246c1e8a
SHA512c23656a9e954800a1fa0629e13ea6b62d4336cc17d5754b0401344a24eb6f105b745ded3fa65a9f7c6ca144cc43c807a59bd2a1c052adeecae811a1003932e4d
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Filesize
1.2MB
MD5523ebf55bb54cad7f0c3b4eacfcd8b22
SHA173ea23668211e458f724aebc555ec239e8a79d94
SHA256c7a497234ef3234ff24926a4a5100a6bf4ecc535d07929c797f3f00a3283c73c
SHA512109c3d758f9e8cef2599b8e4b6a8bc6f0574dcda4e8a204364effe85d381a2eae4626e00296ea7946395d3f0ad07b57b7bf8dbd032a0779d5a3bd6911e533636