1e539e4edb08c5fd4a091ca8b96c44e3c3c11034483b9a75d184c5affca68a03

Analysis

max time kernel
147s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 06:44

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General

Target

2c136aa55d66577608f8d74d3ff0d1cc.exe
Size

2KB
MD5

2c136aa55d66577608f8d74d3ff0d1cc
SHA1

516ecb3377bebffd5cc6a73b012e8990fdb66be0
SHA256

1e539e4edb08c5fd4a091ca8b96c44e3c3c11034483b9a75d184c5affca68a03
SHA512

efee1ddfd4834d68a70c5bc6bc1a5336420458dd735e7369027758a3347b9fefa2ba37a864536dfba339e46c61d9df961307e819b40fd6f7eae316da20ec20fb

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2c136aa55d66577608f8d74d3ff0d1cc.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\regedit.exe	attrib.exe

Drops file in Windows directory 25 IoCs

description	ioc	Process
File opened for modification	C:\Windows\setuperr.log	attrib.exe
File opened for modification	C:\Windows\win.ini	attrib.exe
File opened for modification	C:\Windows\Globalization\ICU\icudtl.dat	cmd.exe
File opened for modification	C:\Windows\SysmonDrv.sys	attrib.exe
File opened for modification	C:\Windows\winhlp32.exe	attrib.exe
File opened for modification	C:\Windows\hh.exe	attrib.exe
File opened for modification	C:\Windows\lsasetup.log	attrib.exe
File opened for modification	C:\Windows\splwow64.exe	attrib.exe
File opened for modification	C:\Windows\WindowsUpdate.log	attrib.exe
File opened for modification	C:\Windows\bfsvc.exe	attrib.exe
File opened for modification	C:\Windows\twain_32.dll	attrib.exe
File opened for modification	C:\Windows\WMSysPr9.prx	attrib.exe
File opened for modification	C:\Windows\write.exe	attrib.exe
File opened for modification	C:\Windows\bootstat.dat	attrib.exe
File opened for modification	C:\Windows\HelpPane.exe	attrib.exe
File opened for modification	C:\Windows\Professional.xml	attrib.exe
File opened for modification	C:\Windows\setupact.log	attrib.exe
File opened for modification	C:\Windows\notepad.exe	attrib.exe
File opened for modification	C:\Windows\explorer.exe	attrib.exe
File opened for modification	C:\Windows\WindowsShell.Manifest	attrib.exe
File opened for modification	C:\Windows\DtcInstall.log	attrib.exe
File opened for modification	C:\Windows\mib.bin	attrib.exe
File opened for modification	C:\Windows\PFRO.log	attrib.exe
File opened for modification	C:\Windows\sysmon.exe	attrib.exe
File opened for modification	C:\Windows\system.ini	attrib.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 5060	3208	2c136aa55d66577608f8d74d3ff0d1cc.exe	89
PID 3208 wrote to memory of 5060	3208	2c136aa55d66577608f8d74d3ff0d1cc.exe	89
PID 3208 wrote to memory of 5060	3208	2c136aa55d66577608f8d74d3ff0d1cc.exe	89
PID 5060 wrote to memory of 760	5060	cmd.exe	91
PID 5060 wrote to memory of 760	5060	cmd.exe	91
PID 5060 wrote to memory of 760	5060	cmd.exe	91

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
760	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2c136aa55d66577608f8d74d3ff0d1cc.exe
"C:\Users\Admin\AppData\Local\Temp\2c136aa55d66577608f8d74d3ff0d1cc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3208
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\c0ldW4ff3lz.bat" "
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:5060
- - C:\Windows\SysWOW64\attrib.exe
    ATTRIB -S -H -R -A C:\Windows\*
    3⤵
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Views/modifies file attributes
    PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\c0ldW4ff3lz.bat

Filesize
144B

MD5
ac6dc4ca9cd7dfc654f8994603163ad7

SHA1
190b3c2d7268a1526b7cf6c3e9d5a2ac400e151f

SHA256
fc94bbf991dfc7e5ece390ec84b0f93b21aeac47667a90d302ee382764cfa820

SHA512
0c34191973e299c803be4aa439a56791ba5ad6db7bf17981978167724c133f1016006871d0a4919ca53d61dc6c2dedf625efa94d205a5b4efdae9e254aafde8c

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