Analysis
- max time kernel
293s - max time network
299s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system - submitted
30/05/2024, 22:50
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
Resource
win7-20240508-en
9 signatures
300 seconds
Behavioral task
behavioral2
Sample
416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
Resource
win10-20240404-en
9 signatures
300 seconds
General
- Target 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
- Size 4.9MB
- Sample240530-2r72esdf74
- SHA256 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e
- MD5 269a757cdd2d0f6d82ffb5a386aeee5d
- SHA1 857920c33dab7be2f41587087e39482b4d32b93a
- SHA512 4f8c46e6411782668b73fea3e831b77daecba9c897d3898f3ae265b0d4a9c325e1a930ac95c6810339cb09ad7e1c35afe885047dc728b3c25730ffab38893ebd
- SSDEEP 98304:mw51I1Ojc13BlmNWzHJMUikxn8AY8qWiXAEvl9:X5xj83BtzpMf4n8AYLXAEt9
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/5096-84-0x0000000000940000-0x00000000009E2000-memory.dmp family_socks5systemz - Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
pid Process 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 4432 stereotool32.exe 5096 stereotool32.exe - Loads dropped DLL 1 IoCs
pid Process 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp - Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 141.98.234.31 Destination IP 45.155.250.90 - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1424 wrote to memory of 2708 1424 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe 74 PID 1424 wrote to memory of 2708 1424 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe 74 PID 1424 wrote to memory of 2708 1424 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe 74 PID 2708 wrote to memory of 4432 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 75 PID 2708 wrote to memory of 4432 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 75 PID 2708 wrote to memory of 4432 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 75 PID 2708 wrote to memory of 5096 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 76 PID 2708 wrote to memory of 5096 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 76 PID 2708 wrote to memory of 5096 2708 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp 76
Processes
-
C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1424 -
C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp"C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp" /SL5="$7021C,4836427,54272,C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i3⤵
- Executes dropped EXE
PID:4432
-
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s3⤵
- Executes dropped EXE
PID:5096
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
- Size 3.0MB
- SHA256 7f1de671a637afdee839e731a18713f4a4bce1af5c6cb597622e31798ade0e63
- MD5 7799a5274162870fdf533d92c66f8609
- SHA1 6b5a84ec3d5e546f8a283837f249da55ac76d583
- SHA512 e367af7ec28d882ca753f06910d216c72206de557c1923cf8bb451667ccf8ff11cf6930ab9da362d142d14feb06ec4fe0589d2c9c80348b66e075f37df285261
- SSDEEP 98304:mhFuH6LpdQ2melci7Pj98+cmKBx2x/qZyczje:5H6M27lciV8+cZBxQSzje
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp
- Size 680KB
- SHA256 3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7
- MD5 b70ed3d1bcbe0eb891e7fcd65a6c77e4
- SHA1 30cf3d962d02a6a985d9adb67c915295568d69fa
- SHA512 86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86
- SSDEEP 12288:L0QfKb7nH5lrPo37AzHTA63I0ihE4UEQrrNtIECORGvS5ELAfXExy8:ffKbT5lrPo37AzHTA63/cfU9IEUS53f0
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-F1KDJ.tmp\_isetup\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- MD5 SHA1 SHA512