eb42d640fd9705235e742c0f81f14065aefdaae8217639ba14486d6ab8eb6fee

Analysis

max time kernel
94s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 10:57

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General

Target

eb42d640fd9705235e742c0f81f14065aefdaae8217639ba14486d6ab8eb6feeN.dll
Size

200KB
MD5

f79006ba2a3876ab9305195cc8d0c2f0
SHA1

9d21ff94924ade4cfa131191a9a7024027e9beb1
SHA256

eb42d640fd9705235e742c0f81f14065aefdaae8217639ba14486d6ab8eb6fee
SHA512

daea132cf93e5e6ba419bb413613c35e24f324abb4ce5f403adbfe4a03d0deaa32db3848e2acc00b980d134c1cf9354fb151bfc4d713abe5066f55bb0f4fcde2
SSDEEP

3072:DOBOLWXivHYMzv2HvP5YeBTEEP2831Vr/rF8QOSta7Wefkka+4BCLUIXCjtmVlGJ:DOp8HpzdQOStKIdSUIXCYGcDlTVE

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
224	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000d000000023b84-3.dat	upx
behavioral2/memory/224-4-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral2/memory/224-8-0x0000000000400000-0x000000000046A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4140	224	WerFault.exe	84

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	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 1360	4344	rundll32.exe	83
PID 4344 wrote to memory of 1360	4344	rundll32.exe	83
PID 4344 wrote to memory of 1360	4344	rundll32.exe	83
PID 1360 wrote to memory of 224	1360	rundll32.exe	84
PID 1360 wrote to memory of 224	1360	rundll32.exe	84
PID 1360 wrote to memory of 224	1360	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eb42d640fd9705235e742c0f81f14065aefdaae8217639ba14486d6ab8eb6feeN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\eb42d640fd9705235e742c0f81f14065aefdaae8217639ba14486d6ab8eb6feeN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    PID:224
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 260
      4⤵
      Program crash
      PID:4140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 224 -ip 224
1⤵
PID:1548

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

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
101KB

MD5
1f92a7cf627f4c7d554d28326f1da954

SHA1
b7befe20fd68856539347f0650473b6dad504863

SHA256
fee6b0318f0ba98b8df448017226ad900167f9d7cb1d21d603f5da3022f29e00

SHA512
07c8d54b2b68f11b9a05fd652f0dc5b3bc30de58eb20537846763bc011e64496c0636a8e37abbc96d07a6ff9c304141e38e8f0453760d48f753343eaa319fec5

Download Submit
memory/224-4-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/224-6-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/224-8-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1360-0-0x0000000007000000-0x0000000007034000-memory.dmp

Filesize
208KB

Download