1a557fae2d39d06392f4bea760fb72c87f0959a7c3ac66865e36f316866f57d3

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/03/2024, 14:58

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General

Target
5b87828ea000c7111084d8beed17175e.exe
Size 1.7MB
Sample240301-sb6nzshb59
SHA256 1a557fae2d39d06392f4bea760fb72c87f0959a7c3ac66865e36f316866f57d3
MD5 5b87828ea000c7111084d8beed17175e
SHA1 e8aa3848e39c449051702a333e608fafd2e5330f
SHA512 56b0d0e5422b89a4659969f59570962dbb267fde913ed051fbedf3d66653c9c23d15c945a6ae8ce5570af010b3671eb0be085e8afb44c3088def9f423290f385
SSDEEP 24576:81kbCQGxjsyk9Rr+oZaK6MIz2C54+Usy0QbomiwXxn5ybD2R+zrKhu3PF9Ssxchz:AQGZZgRZapMZr0bD2MrpPnrxqT
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4908-0-0x0000000000400000-0x0000000000930000-memory.dmp	upx
behavioral2/memory/4908-5-0x0000000000400000-0x0000000000930000-memory.dmp	upx

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3508	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4908	5b87828ea000c7111084d8beed17175e.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 3924	4908	5b87828ea000c7111084d8beed17175e.exe	98
PID 4908 wrote to memory of 3924	4908	5b87828ea000c7111084d8beed17175e.exe	98
PID 4908 wrote to memory of 3924	4908	5b87828ea000c7111084d8beed17175e.exe	98
PID 3924 wrote to memory of 3668	3924	cmd.exe	100
PID 3924 wrote to memory of 3668	3924	cmd.exe	100
PID 3924 wrote to memory of 3668	3924	cmd.exe	100
PID 3924 wrote to memory of 3508	3924	cmd.exe	101
PID 3924 wrote to memory of 3508	3924	cmd.exe	101
PID 3924 wrote to memory of 3508	3924	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\5b87828ea000c7111084d8beed17175e.exe
"C:\Users\Admin\AppData\Local\Temp\5b87828ea000c7111084d8beed17175e.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3924
- - C:\Windows\SysWOW64\chcp.com
    chcp 1251
    3⤵
    PID:3668
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F
    3⤵
    - Creates scheduled task(s)
    PID:3508

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4156 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:4928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Task.bat

Path C:\Users\Admin\AppData\Roaming\Temp\Task.bat
Size 128B
SHA256 6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331
MD5 11bb3db51f701d4e42d3287f71a6a43e
SHA1 63a4ee82223be6a62d04bdfe40ef8ba91ae49a86
SHA512 907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2
MD5 SHA1 SHA512

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memory/4908-0-0x0000000000400000-0x0000000000930000-memory.dmp

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memory/4908-1-0x0000000000A50000-0x0000000000A51000-memory.dmp

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memory/4908-5-0x0000000000400000-0x0000000000930000-memory.dmp

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memory/4908-7-0x0000000000A50000-0x0000000000A51000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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