83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43

General

Target
83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43.bin.dll
Size 5.2MB
Sample210125-ltafad7e5a
SHA256 83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43
MD5 3a4299537272d8671d85c99c17918e99
SHA1 93ff8577a13146091e40349fa523a6f54bd5fa2a
SHA512 29011d41fdfc35cf3a4fe84fc08536bf1aa2afae2954227c58c53bbd922dcbfe256c43844e4153b56888f0e648dc57ad25d9bf15abe0dfb5796c2276b2ff1d28
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
2	1140	RUNDLL32.EXE
4	1140	RUNDLL32.EXE
5	1140	RUNDLL32.EXE
6	1140	RUNDLL32.EXE

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops desktop.ini file(s) 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	RUNDLL32.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\5JH7AFHU\desktop.ini	RUNDLL32.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\GLQ59KOM\desktop.ini	RUNDLL32.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini	RUNDLL32.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	rundll32.exe
Token: SeDebugPrivilege	1140	RUNDLL32.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1660 wrote to memory of 1432	1660	rundll32.exe	26
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27
PID 1432 wrote to memory of 1140	1432	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43.bin.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43.bin.dll,#1
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Windows\SysWOW64\RUNDLL32.EXE
    C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\83a67ecd166b919255b264718993c284a3238971a24c939c45e0c525f3361a43.bin.dll,nkRaXKn3ASz9
    3⤵
    - Blocklisted process makes network request
    - Drops desktop.ini file(s)
    - Suspicious use of AdjustPrivilegeToken
    PID:1140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1140-7-0x0000000074280000-0x0000000074423000-memory.dmp

Download

memory/1432-3-0x0000000074D11000-0x0000000074D13000-memory.dmp

Download

memory/1432-4-0x0000000074430000-0x00000000745D3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads