97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095

General

Target

97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095N.dll
Size

180KB
MD5

2d9ddd84aa59a3bd3ff4bb2200444ae0
SHA1

b43630c7ed24452365b90ab3d713d576cbcdcd60
SHA256

97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095
SHA512

d91b65ab4645a7c0880612cd95737c47e2158851d3ac550e28718942c7cb2a4d0ac151c6abbe809242550530b8c5b56561d4cc55ffad7678d282eae4566b117f
SSDEEP

3072:l82DHDd3sEN+GAyaLILdkvGTrqZPDXjeng:pzJxfFaLadkB9fen

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
18	2316	rundll32.exe
20	2316	rundll32.exe
38	2316	rundll32.exe
44	2316	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	rundll32.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3504-1-0x00000000752A0000-0x00000000752D2000-memory.dmp	upx
behavioral2/memory/3504-4-0x00000000752A0000-0x00000000752D2000-memory.dmp	upx
behavioral2/memory/2316-9-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-12-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/3504-23-0x00000000752A0000-0x00000000752D2000-memory.dmp	upx
behavioral2/memory/2316-29-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-31-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-43-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-55-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-83-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-141-0x0000000075250000-0x0000000075282000-memory.dmp	upx
behavioral2/memory/2316-165-0x0000000075250000-0x0000000075282000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\PROGRA~3\j6li7v8.bbr	rundll32.exe
File opened for modification	C:\PROGRA~3\j6li7v8.bbr	rundll32.exe
File created	C:\PROGRA~3\8v7il6j.gsa	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 3504	1596	rundll32.exe	83
PID 1596 wrote to memory of 3504	1596	rundll32.exe	83
PID 1596 wrote to memory of 3504	1596	rundll32.exe	83
PID 3504 wrote to memory of 2316	3504	rundll32.exe	87
PID 3504 wrote to memory of 2316	3504	rundll32.exe	87
PID 3504 wrote to memory of 2316	3504	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095N.dll,#1
  2⤵
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\PROGRA~3\8v7il6j.gsa,MMS1
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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

C:\PROGRA~3\8v7il6j.gsa

Filesize
180KB

MD5
2d9ddd84aa59a3bd3ff4bb2200444ae0

SHA1
b43630c7ed24452365b90ab3d713d576cbcdcd60

SHA256
97bd92cb06c1da1d2ae68f73380c47cf99b044b776069682dfe937c5a8d36095

SHA512
d91b65ab4645a7c0880612cd95737c47e2158851d3ac550e28718942c7cb2a4d0ac151c6abbe809242550530b8c5b56561d4cc55ffad7678d282eae4566b117f

Download Submit
memory/2316-11-0x0000000075270000-0x0000000075281000-memory.dmp

Filesize
68KB

Download
memory/2316-28-0x0000000075270000-0x0000000075281000-memory.dmp

Filesize
68KB

Download
memory/2316-165-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-141-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-8-0x0000000001510000-0x0000000001511000-memory.dmp

Filesize
4KB

Download
memory/2316-9-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-12-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-83-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-55-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-43-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-31-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/2316-29-0x0000000075250000-0x0000000075282000-memory.dmp

Filesize
200KB

Download
memory/3504-23-0x00000000752A0000-0x00000000752D2000-memory.dmp

Filesize
200KB

Download
memory/3504-22-0x00000000752C0000-0x00000000752D1000-memory.dmp

Filesize
68KB

Download
memory/3504-4-0x00000000752A0000-0x00000000752D2000-memory.dmp

Filesize
200KB

Download
memory/3504-0-0x0000000000960000-0x0000000000961000-memory.dmp

Filesize
4KB

Download
memory/3504-1-0x00000000752A0000-0x00000000752D2000-memory.dmp

Filesize
200KB

Download
memory/3504-3-0x00000000752C0000-0x00000000752D1000-memory.dmp

Filesize
68KB

Download

Analysis

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