Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03/08/2024, 15:01
Static task
static1
Behavioral task
behavioral1
Sample
a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe
Resource
win11-20240802-en
General
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Target
a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe
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Size
3.9MB
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MD5
20c1411d368aae74bf3f07e49416f8a5
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SHA1
2f800d91350c304687977a6997689d99cc81625a
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SHA256
a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54
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SHA512
3656f207ffeda1fdd1557090757eee75bc41aedfaa35f8fb93e1c08e5bc36c232827d81115632049c3b18830ff9b82c1cf0ab121b87ae4b786de5a0efc3dad76
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SSDEEP
98304:NZPGQrQ615H8NYHBAe0AQO8y2NCsdVRBcO4qGqMvbWgwhET9BEodU:3z9+YdQO8yHsfcO4riKDW
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/3884-77-0x0000000000B90000-0x0000000000C32000-memory.dmp family_socks5systemz behavioral1/memory/3884-100-0x0000000000B90000-0x0000000000C32000-memory.dmp family_socks5systemz behavioral1/memory/3884-101-0x0000000000B90000-0x0000000000C32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 3312 jeengle32.exe 3884 jeengle32.exe -
Loads dropped DLL 1 IoCs
pid Process 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 91.211.247.248 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jeengle32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jeengle32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4928 wrote to memory of 2036 4928 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe 84 PID 4928 wrote to memory of 2036 4928 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe 84 PID 4928 wrote to memory of 2036 4928 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe 84 PID 2036 wrote to memory of 3312 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 85 PID 2036 wrote to memory of 3312 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 85 PID 2036 wrote to memory of 3312 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 85 PID 2036 wrote to memory of 3884 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 86 PID 2036 wrote to memory of 3884 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 86 PID 2036 wrote to memory of 3884 2036 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp 86
Processes
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C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp"C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp" /SL5="$B02CA,3821356,54272,C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3312
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C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.5MB
MD5d2a3590cd1a8a5b3e3ddd8839a7a4ca9
SHA13b09fd644f8628f2f23ef0622374ef72a545d78c
SHA2567a009ecaa6467056a6d6e1ee1ae689bf43bb75e9128e94c475f4c409b078b285
SHA51287f525346aab68de223f44809c8bc117f97961f22f1629982deb836737c80a12290c9b7c8e1a8bbe906ba8fe4461965435ac25670d069c45793affad59eae84b
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
Filesize692KB
MD578800d81ba6ad634d25059847cfb1baa
SHA1022982bc0d006b40299bd553653970acb4718682
SHA25624a25380d33d0cf52686906e1272d13c3d467307ec7194e1186cab6f3aa3af69
SHA51283ffff319f2d910d001af4900098e8857dc9c4bd592e60b27ffdb0b49f9c8e1922ef61bfcdbebe9c1a37a7339a00ac98f05cba3d41f580513cb6971bcffd23a8