7a77dec7a2a6cd2769e82ea0fd053881853c0f7612e605c41758952629740c19

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 00:13

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General

Target

7a77dec7a2a6cd2769e82ea0fd053881853c0f7612e605c41758952629740c19.dll
Size

80KB
MD5

b07174fc391992f4bd743300a0fe745b
SHA1

8abfbd6137e367e13bc1a48210188dfbb7d46604
SHA256

7a77dec7a2a6cd2769e82ea0fd053881853c0f7612e605c41758952629740c19
SHA512

028cfc33a66ea62cf9c3b7731146e97f7042f20224bed9a922ef97b5546d4a2f6f06a62f184da51c042d462fcaa5085de0defc3dea47e3efda6dd60e83d60ea7
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEMLS:5dbwovEVyqgoZmZXWfIdQdRaefPhLS

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	2764	rundll32.exe
8	2764	rundll32.exe
9	2764	rundll32.exe

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

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2772	arp.exe
2092	arp.exe
2108	arp.exe
2700	arp.exe
2840	arp.exe
2632	arp.exe
2580	arp.exe
2592	arp.exe
2812	arp.exe

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2764-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2700-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2700-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2840-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2632-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2592-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2812-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2108-12-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2580-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2772-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2092-10-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2592-30-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2580-28-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2812-26-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2632-25-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2108-22-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2840-20-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2772-18-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2092-17-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-32-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2776-34-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2776-36-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-41-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-44-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-45-0x0000000010000000-0x0000000010033000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 11 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2764	rundll32.exe
2764	rundll32.exe
2764	rundll32.exe
2764	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
476	Process not Found
476	Process not Found

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	rundll32.exe
Token: SeDebugPrivilege	2840	arp.exe
Token: SeDebugPrivilege	2632	arp.exe
Token: SeDebugPrivilege	2092	arp.exe
Token: SeDebugPrivilege	2108	arp.exe
Token: SeDebugPrivilege	2592	arp.exe
Token: SeDebugPrivilege	2772	arp.exe
Token: SeDebugPrivilege	2812	arp.exe
Token: SeDebugPrivilege	2580	arp.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2764 wrote to memory of 2700	2764	rundll32.exe	32
PID 2764 wrote to memory of 2700	2764	rundll32.exe	32
PID 2764 wrote to memory of 2700	2764	rundll32.exe	32
PID 2764 wrote to memory of 2700	2764	rundll32.exe	32
PID 2764 wrote to memory of 2772	2764	rundll32.exe	34
PID 2764 wrote to memory of 2772	2764	rundll32.exe	34
PID 2764 wrote to memory of 2772	2764	rundll32.exe	34
PID 2764 wrote to memory of 2772	2764	rundll32.exe	34
PID 2764 wrote to memory of 2840	2764	rundll32.exe	35
PID 2764 wrote to memory of 2840	2764	rundll32.exe	35
PID 2764 wrote to memory of 2840	2764	rundll32.exe	35
PID 2764 wrote to memory of 2840	2764	rundll32.exe	35
PID 2764 wrote to memory of 2580	2764	rundll32.exe	36
PID 2764 wrote to memory of 2580	2764	rundll32.exe	36
PID 2764 wrote to memory of 2580	2764	rundll32.exe	36
PID 2764 wrote to memory of 2580	2764	rundll32.exe	36
PID 2764 wrote to memory of 2632	2764	rundll32.exe	37
PID 2764 wrote to memory of 2632	2764	rundll32.exe	37
PID 2764 wrote to memory of 2632	2764	rundll32.exe	37
PID 2764 wrote to memory of 2632	2764	rundll32.exe	37
PID 2764 wrote to memory of 2092	2764	rundll32.exe	39
PID 2764 wrote to memory of 2092	2764	rundll32.exe	39
PID 2764 wrote to memory of 2092	2764	rundll32.exe	39
PID 2764 wrote to memory of 2092	2764	rundll32.exe	39
PID 2764 wrote to memory of 2108	2764	rundll32.exe	41
PID 2764 wrote to memory of 2108	2764	rundll32.exe	41
PID 2764 wrote to memory of 2108	2764	rundll32.exe	41
PID 2764 wrote to memory of 2108	2764	rundll32.exe	41
PID 2764 wrote to memory of 2592	2764	rundll32.exe	43
PID 2764 wrote to memory of 2592	2764	rundll32.exe	43
PID 2764 wrote to memory of 2592	2764	rundll32.exe	43
PID 2764 wrote to memory of 2592	2764	rundll32.exe	43
PID 2764 wrote to memory of 2812	2764	rundll32.exe	44
PID 2764 wrote to memory of 2812	2764	rundll32.exe	44
PID 2764 wrote to memory of 2812	2764	rundll32.exe	44
PID 2764 wrote to memory of 2812	2764	rundll32.exe	44
PID 2764 wrote to memory of 2776	2764	rundll32.exe	50
PID 2764 wrote to memory of 2776	2764	rundll32.exe	50
PID 2764 wrote to memory of 2776	2764	rundll32.exe	50
PID 2764 wrote to memory of 2776	2764	rundll32.exe	50

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a77dec7a2a6cd2769e82ea0fd053881853c0f7612e605c41758952629740c19.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a77dec7a2a6cd2769e82ea0fd053881853c0f7612e605c41758952629740c19.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2700
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 44-b2-5f-fe-8a-b9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2772
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 20-be-ad-0c-57-1c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.180 84-fa-5a-47-a7-eb
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2580
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 24-d1-27-5c-7f-d5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2632
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 b1-8b-7b-c5-65-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2092
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 06-10-f9-17-1d-6d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2108
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 bc-3a-e1-10-cb-21
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2592
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 c2-77-0a-6b-87-c1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2812
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2092-17-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2092-10-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2108-12-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2108-22-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2580-28-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2580-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2592-30-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2592-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2632-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2632-25-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2700-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2700-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-32-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-45-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-44-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-41-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2772-18-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2772-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2776-36-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2776-34-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2812-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2812-26-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2840-20-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2840-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download