Analysis
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max time kernel
117s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
22-12-2023 16:50
Behavioral task
behavioral1
Sample
f8494aadaa2fa9ef42b9376a82c00dd0.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f8494aadaa2fa9ef42b9376a82c00dd0.exe
Resource
win10v2004-20231215-en
General
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Target
f8494aadaa2fa9ef42b9376a82c00dd0.exe
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Size
2.0MB
-
MD5
f8494aadaa2fa9ef42b9376a82c00dd0
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SHA1
910380a09a3c1941d3796f9ed5c04f0876356003
-
SHA256
22ea5a6766623b8f727d45d70a75e10c5dc27c1dbdfb6dc1de1325497ed1ece6
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SHA512
4f55a9f31c1c56e4af21e2da521779fa68c94046339504b734a87d955fa12de51b7c358c1e6132eecc13529f0c8443d66dcee129466d992c0117388cbf462681
-
SSDEEP
49152:fZxW/k+JlcakLz0ibq6yqhAP6xAnQZbs5MUX1jvmacakLz0ibq6yqh:fZxWFJlcakcibiqh26eQZbeMqZmacakh
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
Executes dropped EXE 1 IoCs
pid Process 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
Loads dropped DLL 1 IoCs
pid Process 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
resource yara_rule behavioral1/memory/2612-0-0x0000000000400000-0x000000000065C000-memory.dmp upx behavioral1/files/0x000b000000012251-11.dat upx behavioral1/files/0x000b000000012251-14.dat upx behavioral1/files/0x000b000000012251-15.dat upx -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2664 schtasks.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 f8494aadaa2fa9ef42b9376a82c00dd0.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 f8494aadaa2fa9ef42b9376a82c00dd0.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405 f8494aadaa2fa9ef42b9376a82c00dd0.exe Set value (data) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405\Blob = 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 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2612 wrote to memory of 2304 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe 17 PID 2612 wrote to memory of 2304 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe 17 PID 2612 wrote to memory of 2304 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe 17 PID 2612 wrote to memory of 2304 2612 f8494aadaa2fa9ef42b9376a82c00dd0.exe 17 PID 2304 wrote to memory of 2664 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 25 PID 2304 wrote to memory of 2664 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 25 PID 2304 wrote to memory of 2664 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 25 PID 2304 wrote to memory of 2664 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 25 PID 2304 wrote to memory of 2780 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 32 PID 2304 wrote to memory of 2780 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 32 PID 2304 wrote to memory of 2780 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 32 PID 2304 wrote to memory of 2780 2304 f8494aadaa2fa9ef42b9376a82c00dd0.exe 32 PID 2780 wrote to memory of 2844 2780 cmd.exe 30 PID 2780 wrote to memory of 2844 2780 cmd.exe 30 PID 2780 wrote to memory of 2844 2780 cmd.exe 30 PID 2780 wrote to memory of 2844 2780 cmd.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\f8494aadaa2fa9ef42b9376a82c00dd0.exeC:\Users\Admin\AppData\Local\Temp\f8494aadaa2fa9ef42b9376a82c00dd0.exe1⤵
- Deletes itself
- Executes dropped EXE
- Modifies system certificate store
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\SysWOW64\schtasks.exeschtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\f8494aadaa2fa9ef42b9376a82c00dd0.exe" /TN U5Z8sQiHf24d /F2⤵
- Creates scheduled task(s)
PID:2664
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C:\Windows\SysWOW64\cmd.execmd.exe /c schtasks.exe /Query /XML /TN U5Z8sQiHf24d > C:\Users\Admin\AppData\Local\Temp\I2rfFK.xml2⤵
- Suspicious use of WriteProcessMemory
PID:2780
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C:\Users\Admin\AppData\Local\Temp\f8494aadaa2fa9ef42b9376a82c00dd0.exe"C:\Users\Admin\AppData\Local\Temp\f8494aadaa2fa9ef42b9376a82c00dd0.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2612
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C:\Windows\SysWOW64\schtasks.exeschtasks.exe /Query /XML /TN U5Z8sQiHf24d1⤵PID:2844
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5738f049d718364ba4067998349d61b43
SHA1f04279e201bd4d23036540a31d141f6a01583583
SHA2567dc1d91a295516f11b70c884ae85a5d699a77cd47c1cf73c0477833d60027932
SHA5124079e6a407e57459f49cdbc5816ca612b29e5d8b78539493d8e152e3badd4b5d04386d6874f52eb018f0a1ae8754bc2ecd6dc1e7900ac3711205ce55090199c5
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Filesize
96KB
MD57cadcfa154e19dbe6a3a8bba8f360c58
SHA1adeede5f6f3901cf9cb6a54adb1b0f2748e2e63f
SHA256d4d5588d8c5e7ed601e859a3126ddd4bacc171870d5fc42b39e3afadbadb189c
SHA5120fa99be8d249e0b4b213c31597fc5311f11881424b7c2bd6b4dafb3e2a645a35826ece491663076cba43dd297dea25d5b5d3254e4841aff8a446201d25349e6d
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Filesize
270KB
MD5c41f60870e69b1fa2c35e965816c0bac
SHA1a321cc55ec9c2e1910a211e12b060d31ba723988
SHA25601102d40b829d1bf2ee5544c05a89e98f2eab09494abcf8e8129502d9dacce14
SHA5126ed49cdd39734d38ee02f6692d73c1464a76e791f9c04c1ff708d89e71b48ef7dab7d47dd94d17957ef517185ec354c2c758933a2c914996a3cfb5c806322387
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Filesize
102KB
MD5fb4b05f02fadec6c56c08e91f53639c0
SHA16cb0fa4a7ebfa180a47548606d3d067d29fdd9b5
SHA2568d3ba0f3605bc4465516282561b6db9f42d4f1ea3c23aabfa52a4bfcee0aabaf
SHA5127c6c7babd46b6156eb16dff2b425de861b6a07a24d50966d74501fcd09c2d080b843e577666a3ba3e67a1b2fab049b30331aed1e50cfa3bf8442e00f49450ed1