811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550

Analysis

max time kernel
150s
max time network
131s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 03:51

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General

Target
811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
Size 2.4MB
Sample260820-eexzcsyhrd
SHA256 811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550
MD5 40021cacf9a84feaa03ee6ab18483769
SHA1 7c804c11633c8b429bddc00bdeb0fd0ef15407f1
SHA512 09791d7407a018c12cbbe664c41f85f0ce35cfd5c1618975b813728d751dd9c48039cc734972300428bc274e6f17f1b1b9f0bcd8b1fb4d568d8b02426d112289
SSDEEP 49152:rKA5/fBjtsZK28M2FKL9FUTISqAHJgTsaUerjrxoFTH:rKA80MwKL9SISqA0saJr3xcTH
TLSH
T11AC51219D7E404F8E1B3E5B8CA564A11E77778494370E78F13ACA9A75F232908E3DB12
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery execution

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2584	upcheck32.exe

Drops file in Program Files directory 16 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\libportable\upcheck64.exe	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\portable32.dll	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\README	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\README	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\upcheck32.exe	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\upcheck32.exe	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\portable(example).ini	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\injectpe.bat	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\upcheck64.exe	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\__tmp_rar_sfx_access_check_240727875	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\portable(example).ini	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\injectpe.bat	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\portable64.dll	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File opened for modification	C:\Program Files\libportable\portable64.dll	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
File created	C:\Program Files\libportable\portable32.dll	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4756	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	upcheck32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 4756	4620	811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe	89
PID 4756 wrote to memory of 2584	4756	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe
"C:\Users\Admin\AppData\Local\Temp\811145d89db7e55b994ac7e5fbb02fb2c42a3d6e2780aad282bf7562384bd550.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Program Files\libportable\injectpe.bat" "
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4756
- - C:\Program Files\libportable\upcheck32.exe
    upcheck32.exe -file
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2584

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

injectpe.bat

Path C:\Program Files\libportable\injectpe.bat
Size 1KB
SHA256 5c0ccdec93bca2e73fdbfb434e60c2622642e3e40dfaf4315155fa00214b94d3
MD5 03e41df5e3777bad432f983e311e1ed7
SHA1 a0a5886190e99f53893dc53c2318ed44f485534c
SHA512 9f1381737fd3c355f49c14af607228a19e3c79f31002266e733f23e894a59b8cf052a5eb4da2821eda3df35c70c66e2d804816b14d017b19b55c232d8c61b8a1
TLSH
T1AC31907876894C11A0B591628D6401C7F287C1534698BCE835EE31F5A36F8550FDFEA8
MD5 SHA1 SHA512 TLSH

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upcheck32.exe

Path C:\Program Files\libportable\upcheck32.exe
Size 2.0MB
SHA256 bb776d570d686450b23d24e593a76dbad860cc6cf0be7033b98b2f6605d81ebb
MD5 8396211a1314610d91ca8da7e3d4bb57
SHA1 02c998b11e8bbb2fcf10dd165fae4f4dc8027741
SHA512 ac72224dbf5815cb48100748ac494c42039a753a1d417250c637f3f31cffb0978dd50d88446a7b54aff40212c74318e0bb0ffbc105427602000a1eba370d44bc
SSDEEP 24576:Wwc1HQqE66Gay0sr2PBnR1Ko5o3vftOIqX0JPxVXXYhSof3DYBCTwIzYvcfBK1aK:WfgyQPp7jXkYhegUSIeqwAOgchz3X+
TLSH
T1D4A59D41F782A0F1F5C211B692B7177B0E34AB04A31599D7C2C039A5AB326D17E3B79E
MD5 SHA1 SHA512 SSDEEP TLSH