991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26e

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 15:21

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General

Target

991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll
Size

203KB
MD5

245e85af2194623c1be2e272fbfb5890
SHA1

77584f40b3e6ea0c620cc777cf88657aa4e8aa23
SHA256

991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26e
SHA512

1b15d6f296fcd0371f1c124f97967a70fbbccaaadd5ea3d0378434de4340f0df9187ceddbb51bea545c184dd2351bdff26fcc5f4445d5560fbc041115b774b44
SSDEEP

3072:hJ8IMILmCa3yx6oFEdgVXnFYf7C9Ugfxm3Nep9viMS8yh4:0kmCaiEoFEd+FYOtxmdeviMNya

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2828-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2828-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2828-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2828-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2392	2828	WerFault.exe	31

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 1560 wrote to memory of 2828	1560	rundll32.exe	31
PID 2828 wrote to memory of 2392	2828	rundll32.exe	32
PID 2828 wrote to memory of 2392	2828	rundll32.exe	32
PID 2828 wrote to memory of 2392	2828	rundll32.exe	32
PID 2828 wrote to memory of 2392	2828	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2828 -s 232
    3⤵
    - Program crash
    PID:2392

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

memory/2828-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2828-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2828-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2828-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download