e5d36cbb52be6f974b08fc9c0f4680fa69413697ae7f7c450ef73d707377f898

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
26-12-2024 18:20

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General

Target

e5d36cbb52be6f974b08fc9c0f4680fa69413697ae7f7c450ef73d707377f898N.dll
Size

288KB
MD5

a764c596c8234a4b7541328cfcf85340
SHA1

3bf749c49f4c0fe513cf5e7ef2bf9ce5e638e0c1
SHA256

e5d36cbb52be6f974b08fc9c0f4680fa69413697ae7f7c450ef73d707377f898
SHA512

c3ee0604ff8501eb5ba7ffe5223a78dde89639210d0c80d486384ed327d638268d3fecd5632ca7d4764eea71832e2263a688966ef921b705d42529565c51d30f
SSDEEP

6144:5CIGPj038tAgFMldWNX+fNErZiYqVHS9fE5M7i4y3l:yj038t/FMldW4fAZiYqVHY80w3l

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2020	rundll32mgr.exe

Loads dropped DLL 9 IoCs

pid	Process
1924	rundll32.exe
1924	rundll32.exe
756	WerFault.exe
756	WerFault.exe
756	WerFault.exe
756	WerFault.exe
756	WerFault.exe
756	WerFault.exe
756	WerFault.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1980	1924	WerFault.exe	30
756	2020	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32mgr.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 2540 wrote to memory of 1924	2540	rundll32.exe	30
PID 1924 wrote to memory of 2020	1924	rundll32.exe	31
PID 1924 wrote to memory of 2020	1924	rundll32.exe	31
PID 1924 wrote to memory of 2020	1924	rundll32.exe	31
PID 1924 wrote to memory of 2020	1924	rundll32.exe	31
PID 1924 wrote to memory of 1980	1924	rundll32.exe	32
PID 1924 wrote to memory of 1980	1924	rundll32.exe	32
PID 1924 wrote to memory of 1980	1924	rundll32.exe	32
PID 1924 wrote to memory of 1980	1924	rundll32.exe	32
PID 2020 wrote to memory of 756	2020	rundll32mgr.exe	33
PID 2020 wrote to memory of 756	2020	rundll32mgr.exe	33
PID 2020 wrote to memory of 756	2020	rundll32mgr.exe	33
PID 2020 wrote to memory of 756	2020	rundll32mgr.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5d36cbb52be6f974b08fc9c0f4680fa69413697ae7f7c450ef73d707377f898N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5d36cbb52be6f974b08fc9c0f4680fa69413697ae7f7c450ef73d707377f898N.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 92
      4⤵
      Loads dropped DLL
      Program crash
      PID:756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 224
    3⤵
    - Program crash
    PID:1980

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

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Downloads

\Windows\SysWOW64\rundll32mgr.exe

Filesize
121KB

MD5
623d4fbb23eede885545651c25bc9b28

SHA1
290d67841d6bd8ce68ae88d8f4a3e3bdca072143

SHA256
1546eae84af97be2cfd8127c75f79b03bd18cc9f44630d3e4e87a5074c644050

SHA512
e489e9316626a645581fb5f0db8458df951643ebdb5a9e9224b3a3f4d9808efbda3a1ad260d865bd49ee385ddf46188072700e0536d3a335cacbaba998ea2f2a

Download Submit
memory/1924-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1924-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1924-10-0x0000000000950000-0x0000000000982000-memory.dmp

Filesize
200KB

Download
memory/1924-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2020-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2020-19-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download