919036bc72056762803c599929ee33811f1c9a13f55c571008b57b20b638c54b

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 09:17

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General

Target

kelscrit.exe
Size

563KB
MD5

64ea70b77e9654021dfe4c5b42a788db
SHA1

ff668253991db29fa83a93a962654a2a13cc87ba
SHA256

919036bc72056762803c599929ee33811f1c9a13f55c571008b57b20b638c54b
SHA512

7ebdbe6ff9e14ec408f52611962af70f24136ee6976a4239f636971d778d9d3491188ccb18c5908f0c69bace9c115dc909a199bec9c74b44ada381c4f8a4429b
SSDEEP

12288:7fYfUlNHYh6qFkbpBOO64kfPZxIgL3lweEbH+aB:7fYMPYc/FHkfhxIgZQH9B

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1964	kelscrit.exe
1964	kelscrit.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2984	1964	WerFault.exe	29

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	kelscrit.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2984	1964	kelscrit.exe	31
PID 1964 wrote to memory of 2984	1964	kelscrit.exe	31
PID 1964 wrote to memory of 2984	1964	kelscrit.exe	31
PID 1964 wrote to memory of 2984	1964	kelscrit.exe	31

C:\Users\Admin\AppData\Local\Temp\kelscrit.exe
"C:\Users\Admin\AppData\Local\Temp\kelscrit.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 28
  2⤵
  - Program crash
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

\Users\Admin\AppData\Local\Temp\nstC746.tmp\System.dll

Filesize
12KB

MD5
192639861e3dc2dc5c08bb8f8c7260d5

SHA1
58d30e460609e22fa0098bc27d928b689ef9af78

SHA256
23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6

SHA512
6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc

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