Analysis
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max time kernel
144s -
max time network
159s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
25/03/2024, 14:34
Static task
static1
Behavioral task
behavioral1
Sample
4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
Resource
win10v2004-20240319-en
Behavioral task
behavioral2
Sample
4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
Resource
win11-20240221-en
General
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Target
4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
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Size
2.1MB
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MD5
a919a7be89a74990b28ca614eb215caa
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SHA1
b8a4f828bcd7c083aa1b1c65b8fbab02b9c75f12
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SHA256
4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d
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SHA512
b69d70431ee9eb318b93e722dc1564062b106b7b5e539ad5edef041270535ecf0304b0844ee4f15da0c513bdb8af594d9da80b2061dac4c9708ee823b346f9a2
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SSDEEP
49152:32tqx2/aldYc68PCaDYpnzGkzlyyLo4mxnQKKEa:mtc0ab/C9akzlDbAp7a
Malware Config
Extracted
socks5systemz
http://bhnxdqi.com/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c7e8969838
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/3180-67-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz behavioral2/memory/3180-70-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz behavioral2/memory/3180-79-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 1460 polyglot32.exe 3180 polyglot32.exe -
Loads dropped DLL 1 IoCs
pid Process 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.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 141.98.234.31 -
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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2380 wrote to memory of 1420 2380 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe 80 PID 2380 wrote to memory of 1420 2380 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe 80 PID 2380 wrote to memory of 1420 2380 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe 80 PID 1420 wrote to memory of 1460 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 81 PID 1420 wrote to memory of 1460 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 81 PID 1420 wrote to memory of 1460 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 81 PID 1420 wrote to memory of 3180 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 82 PID 1420 wrote to memory of 3180 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 82 PID 1420 wrote to memory of 3180 1420 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp 82
Processes
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C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp"C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp" /SL5="$F0214,1834192,54272,C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe"C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -i3⤵
- Executes dropped EXE
PID:1460
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C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe"C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -s3⤵
- Executes dropped EXE
PID:3180
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.6MB
MD57dad002a314fdd2356f9ddb72434a1db
SHA18d7604779077869abd5f9b2782cd0d8146fe1737
SHA256eb70ccead09aa80331e58f95b7b9eaa65014b39baf2ca335bc1b9fc039df475c
SHA512abdbfa80c3da57538485b681970e99fd374c721b6ead978c01aa169db35fba2e54b9df413eebf0024c9eb84f4edae21ec1b5beaa6a79df46058bac2d4b86cf28
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C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp
Filesize677KB
MD5e3c3ff614a631373b2a2e6d45ea2ac14
SHA170f42dbed691518993cd86cc803845b68e63151d
SHA256ef6a7f6238c4f5042a7c806a6edf5fb21c24dead0e3bda36eadaf1fc121a0116
SHA512a206357efbc6a257ce88ffd9a022d8133c6a8cf2c44796f3a80967e71cb9a144643146106f94ff7e5bac4aadf50f959d2e2783a2ad11a7ed7ca123d463486545
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63