bd00dfaf32bacdae1ba88efec478727eeb27c5ea47b42acc45dffab32bd34995

Analysis

max time kernel
144s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
08/01/2024, 12:53

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General

Target

klmcodec157.exe
Size

31.5MB
MD5

aaaa1465406a2de2778b8062b4aa73d2
SHA1

7f649c547f9849378a0216d5751ca72b68477464
SHA256

67ec986d7f9b8f50e4d8fe11df1a65826cd30b8f7c23b1a237ecb06e4a08c701
SHA512

d1fc4799f75978fd035646ba10eea81fad5d278c9420b5844dc16c33c9e96fad9202dff94be1a119ca98b6a2816343cfe839da191da8a3e18491fe2e8766b957
SSDEEP

786432:UYAMS+oVcz29/sXlGXKzcS2nV7PWWnd72Qc1T:PVoVr9u86zfIQWR2B1T

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1752	is-QE96I.tmp

Loads dropped DLL 5 IoCs

pid	Process
2032	klmcodec157.exe
1752	is-QE96I.tmp
1752	is-QE96I.tmp
1752	is-QE96I.tmp
1752	is-QE96I.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1752	is-QE96I.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28
PID 2032 wrote to memory of 1752	2032	klmcodec157.exe	28

C:\Users\Admin\AppData\Local\Temp\klmcodec157.exe
"C:\Users\Admin\AppData\Local\Temp\klmcodec157.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\is-2SFKK.tmp\is-QE96I.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-2SFKK.tmp\is-QE96I.tmp" /SL4 $400EE "C:\Users\Admin\AppData\Local\Temp\klmcodec157.exe" 32667387 190464
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/1752-22-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/2032-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2032-21-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download