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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
14/05/2024, 02:11
Static task
static1
Behavioral task
behavioral1
Sample
c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe
Resource
win10v2004-20240508-en
General
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Target
c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe
-
Size
396KB
-
MD5
58b87b40464c58052ab58c84bc27b06a
-
SHA1
e41cd912bef2e70e7818c2520fbda86772c0e4c1
-
SHA256
c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d
-
SHA512
3841454edce150343acc4c2b5da1788366c4777b10df6786c39d29e183b6fdeea9522e6f9b3bf60798daa6c700366ba2d5aa6b412e45b2f934b56b953780ba48
-
SSDEEP
6144:4jlYKRF/LReWAsUykA4zeah8/HX0TskdOx+/B9Od/uSZvFaX3J7syR4wF3/Y:4jauDReWczUkdVRS
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1944 umrbm.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\umrbm.exe" umrbm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1944 1948 c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe 82 PID 1948 wrote to memory of 1944 1948 c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe 82 PID 1948 wrote to memory of 1944 1948 c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe"C:\Users\Admin\AppData\Local\Temp\c6770b561b64347ca987bbcdccc2be240c84732bffab97b287fa705120352b1d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\ProgramData\umrbm.exe"C:\ProgramData\umrbm.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1944
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
396KB
MD5a1d3f319869fd5f7180ac6150533ac05
SHA142c1d4692058507212d1172af6c3a4dcce4fde14
SHA25631ad597c5c7ca9458ad3f54caa0fdd5d14ab4dd4c60861d990d945b373846b1b
SHA5129fe837a963fb5a3632a6872d44f1e327cbdc0f32dee71babd3c8aef56fea4fd0746f0ab5fe0f5caebb106167e0df6b4a3f39cc2ddcf80770b30e1e68c2baf3e6
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Filesize
136KB
MD5cb4c442a26bb46671c638c794bf535af
SHA18a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf
SHA256f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25
SHA512074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3
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Filesize
259KB
MD55d3b789b9dea7741fd640bce568d97ec
SHA1c8c19b48d3cf8bd2307ed69fc87351c69457bb3d
SHA256e9e573cd9d1fc80dfec9981218da4f8a59ed8cf1100a905be2c28617f74d427f
SHA512c305cfa96f0f3d716b5a02c026313e0a5a2b3f0ef0ef81c7b84ebdea1d666bfd95b3cae8901c4e341c558bf11e4e81f74e9651dd816bdca077075ded8f0c994b