61abbc2d416819024a180218b6c93d4c2ed8b1fcfecc4b2ddd9a914e24c920e0

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30/09/2024, 13:39

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General

Target

uninst.exe
Size

60KB
MD5

73cf0a4c88641e3a2c6285b1e3834e9e
SHA1

48212d420eee315c07623a79037401f23392b661
SHA256

bdd86d23a88a3ccb7d80cc870075b36ffbaed40bfe6efeb736d00f9f34fc1811
SHA512

b0e84d04d95efc3c29ed739c4a170bffe762737385a27d00985ff1b9359cfe3154649f2cf4cb41e7c2d1ed72a1d2486e32d2881be9294b0a6042d464d9c9edc6
SSDEEP

1536:5qBwbLWJLJFKqAZzrZA4kJJZgdLeAyNZmK78cB6YvlAeW:5qBFJLzgOJJZceAQoy8

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2724	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	Au_.exe

Loads dropped DLL 6 IoCs

pid	Process
2444	uninst.exe
2724	Au_.exe
2724	Au_.exe
2724	Au_.exe
2724	Au_.exe
2724	Au_.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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral15/files/0x0006000000016d67-2.dat	nsis_installer_1
behavioral15/files/0x0006000000016d67-2.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2724	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30
PID 2444 wrote to memory of 2724	2444	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

\Users\Admin\AppData\Local\Temp\nsy6C5.tmp\KillProcDLL.dll

Filesize
4KB

MD5
99f345cf51b6c3c317d20a81acb11012

SHA1
b3d0355f527c536ea14a8ff51741c8739d66f727

SHA256
c2689ba1f66066afce85ca6457ecd36370be0fe351c58422e45efd0948655c93

SHA512
937aa75be84a74f2be3b54dc80fac02c17dad1915d924ef82ab354d2a49bc773ee6d801203c52686113783a7c7ea0e8ed8e673ba696d6d3212f7006e291ed2ef

Download Submit
\Users\Admin\AppData\Local\Temp\nsy6C5.tmp\time.dll

Filesize
10KB

MD5
38977533750fe69979b2c2ac801f96e6

SHA1
74643c30cda909e649722ed0c7f267903558e92a

SHA256
b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35

SHA512
e17069395ad4a17e24f7cd3c532670d40244bd5ae3887c82e3b2e4a68c250cd55e2d8b329d6ff0e2d758955ab7470534e6307779e49fe331c1fd2242ea73fd53

Download Submit
\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
60KB

MD5
73cf0a4c88641e3a2c6285b1e3834e9e

SHA1
48212d420eee315c07623a79037401f23392b661

SHA256
bdd86d23a88a3ccb7d80cc870075b36ffbaed40bfe6efeb736d00f9f34fc1811

SHA512
b0e84d04d95efc3c29ed739c4a170bffe762737385a27d00985ff1b9359cfe3154649f2cf4cb41e7c2d1ed72a1d2486e32d2881be9294b0a6042d464d9c9edc6

Download Submit
memory/2724-20-0x00000000003A0000-0x00000000003A3000-memory.dmp

Filesize
12KB

Download
memory/2724-32-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download