fd8f2b5eaeb354d4b2d73acf8f79b93ef77a353f132f8f0fa1ff094e39c4db64

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 01:28

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General

Target

DFX.for.RealPlayer.v9.103/lpk.dll
Size

45KB
MD5

fcdc863503f8b1be2104614f948179fc
SHA1

71485de3e22c42df5f0c9e39f47420e48195fef5
SHA256

d80b59ded380078af93526a8fb78bf19ab05a924958b15a9fdcee8b0e31c3f3a
SHA512

ca0bf43bf2615e32a496a8cd65f2db8bee08c19da36310bc58a7f7dde8849d9aea610a054e3088a9c6bf0284400370806fd38e4e89ba54a35f0f13e8a9f6c2b9
SSDEEP

768:zojY9Pg68uUCS77GhGLhLpms1RZo9yHHojY9P:GmY6BS7LL18+o9yHSm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
212	hrlA9EC.tmp
1288	yqewma.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\yqewma.exe	hrlA9EC.tmp
File opened for modification	C:\Windows\SysWOW64\yqewma.exe	hrlA9EC.tmp

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 4020	1288	yqewma.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1720	4020	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hrlA9EC.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yqewma.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 3516	2412	rundll32.exe	81
PID 2412 wrote to memory of 3516	2412	rundll32.exe	81
PID 2412 wrote to memory of 3516	2412	rundll32.exe	81
PID 3516 wrote to memory of 212	3516	rundll32.exe	82
PID 3516 wrote to memory of 212	3516	rundll32.exe	82
PID 3516 wrote to memory of 212	3516	rundll32.exe	82
PID 1288 wrote to memory of 4020	1288	yqewma.exe	84
PID 1288 wrote to memory of 4020	1288	yqewma.exe	84
PID 1288 wrote to memory of 4020	1288	yqewma.exe	84
PID 1288 wrote to memory of 4020	1288	yqewma.exe	84
PID 1288 wrote to memory of 4020	1288	yqewma.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\DFX.for.RealPlayer.v9.103\lpk.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\DFX.for.RealPlayer.v9.103\lpk.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3516
- - C:\Users\Admin\AppData\Local\Temp\hrlA9EC.tmp
    C:\Users\Admin\AppData\Local\Temp\hrlA9EC.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    PID:212

C:\Windows\SysWOW64\yqewma.exe
C:\Windows\SysWOW64\yqewma.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4020
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 12
    3⤵
    - Program crash
    PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4020 -ip 4020
1⤵
PID:4660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hrlA9EC.tmp

Filesize
38KB

MD5
4b5b96093cdd0eb372be9a459b2bc27e

SHA1
6c36841cabbf00bb365bddede0897fcc6338e68f

SHA256
b3c425ac158293c36809f69d6c53cc4b77c6f14eb63c548320e280414ae7a4fa

SHA512
cba45a987e23452f630790ae620876916710ecda846e5300be0f399ed57bc994cfd594b0a638d217af7a611a5c7c3430f6369f47f3b72403f3eb2fdff0e033fe

Download Submit
memory/212-8-0x0000000000400000-0x000000000040CE58-memory.dmp

Filesize
51KB

Download
memory/4020-7-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download