3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74

General

Target

3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll
Size

80KB
MD5

3d1382f2f19167caecd7b7ab693a4436
SHA1

695cbc23e54f66c55bd461cb8dd39c036f5e0f47
SHA256

3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74
SHA512

f868da844f3c54b2895a0fb3edbf25da7286477c65a6fc10486f391b269f8b64c858dba3bda69b844259264f1b6d7eea15f33c82477f11b055a2923d7c07fdbb
SSDEEP

1536:uIcs6msUvrh8ErMInQ+4cw9NVWfjaRkE4LEl8B60Y2lfxxHZPEvB+2C:dcs6v68Erj3w9zWf+SEFuk0/pfPt2C

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Network Service Discovery 1 TTPs 2 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2784	arp.exe
2876	arp.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2784-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2784-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2692-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2876-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2876-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2788	2692	WerFault.exe	30

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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	rundll32.exe
Token: SeDebugPrivilege	2784	arp.exe
Token: SeDebugPrivilege	2876	arp.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 1876 wrote to memory of 2692	1876	rundll32.exe	30
PID 2692 wrote to memory of 2784	2692	rundll32.exe	31
PID 2692 wrote to memory of 2784	2692	rundll32.exe	31
PID 2692 wrote to memory of 2784	2692	rundll32.exe	31
PID 2692 wrote to memory of 2784	2692	rundll32.exe	31
PID 2692 wrote to memory of 2788	2692	rundll32.exe	32
PID 2692 wrote to memory of 2788	2692	rundll32.exe	32
PID 2692 wrote to memory of 2788	2692	rundll32.exe	32
PID 2692 wrote to memory of 2788	2692	rundll32.exe	32
PID 2692 wrote to memory of 2876	2692	rundll32.exe	34
PID 2692 wrote to memory of 2876	2692	rundll32.exe	34
PID 2692 wrote to memory of 2876	2692	rundll32.exe	34
PID 2692 wrote to memory of 2876	2692	rundll32.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2784
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 344
    3⤵
    - Program crash
    PID:2788
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 71-21-a7-0a-02-4c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2692-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2692-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2784-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2784-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2876-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2876-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download

Analysis

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