621f646fc179862feb1a1a2557e3e10561c1b8dfe673d0bb0e1bc365331b3c80

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 03:14

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General

Target
$0/uninstall.exe
Size 78KB
Sample241018-dreswatfkb
SHA256 8f75ba9703c28b460025e05615222ed2b31e5eed829bfbab30bb029e873c0c24
MD5 490071c63a8583c44546421214809399
SHA1 f2268f3629b25b73b7f3ad984d867be01c19a670
SHA512 00301e21a10071a875b41ab8dbb715fad81af1c28f2badc8d2580b7b40ef52315fbd4af5e1e9a33c2070c3dc5c818632f0bed98f6e46d0869a3859997e12425b
SSDEEP 1536:PEkjY1zy214Qay0DGkJ7qAELVigJGo5hcpw/1q792sX7Ia12/DY:8kjAJ4dDGkJ+AI0bo1qRka0/U
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2732	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2192	uninstall.exe
2732	Au_.exe
2732	Au_.exe
2732	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	uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral3/files/0x000500000001870c-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2732	2192	uninstall.exe	30
PID 2192 wrote to memory of 2732	2192	uninstall.exe	30
PID 2192 wrote to memory of 2732	2192	uninstall.exe	30
PID 2192 wrote to memory of 2732	2192	uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- 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\$0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2732

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

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Downloads

ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nse18DF.tmp\ioSpecial.ini
Size 628B
SHA256 c2f9501acd84a9afc346a9188b4c0cfedcf09bd9670259ef9e6f98d69e98152a
MD5 fa4cf1f9e830715b3beb07ab98f5fecb
SHA1 9f20abbdafeca383bb4c2b1ba9a5283a66bdc57e
SHA512 745c7957bba982c3e8d6419c48939e4755489e9090ef60811790396b2e62da7a052d4ee25e8ed82d59265abe8294a41232d4246a645a3f4ce74c59f98f72ddcd
MD5 SHA1 SHA512

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ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nse18DF.tmp\ioSpecial.ini
Size 703B
SHA256 75b7e11c5d35e1188ba047038972a7a117928e90595bc6454aa7f1b28a93c79d
MD5 4978cf47380963df6124b520d876fb95
SHA1 0bebec1ed9cc0c57f05cbde146f4676ec53b9186
SHA512 6156b50106be202090bcc0c7d23426127408b2fdcb661a586595d3096c56ab54ef90b66036a7cdd1a6798a17b3038d3d13f7699c3f7fecea9717789ad2eedaeb
MD5 SHA1 SHA512

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ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nse18DF.tmp\ioSpecial.ini
Size 628B
SHA256 18e7ddde4ea4b004e6d693e920a6f3a07fc82f417b363982ddd995c4e8412bab
MD5 a604abb3529e61794bd73997cb450112
SHA1 ae0d61aaa43bb648c64122ec34ec71f347bfd74b
SHA512 cbcd3f987893c4a8fac86b85085ceacc4ce10ae6795d41e35c1dc935c14a5157e8986cdf5cd433606a2dc0a2e70e97f2752798bd0a61eccdf40d7e16470bdf01
MD5 SHA1 SHA512

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InstallOptions.dll

Path \Users\Admin\AppData\Local\Temp\nse18DF.tmp\InstallOptions.dll
Size 13KB
SHA256 551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc
MD5 d765c492c21689e3d9d61634371fd861
SHA1 ac200933671ae52c9d5544d0e2e8e9144d286c83
SHA512 9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f
SSDEEP 192:9B6RvrfvOuJQDghBy/X7QKq3TLGciZJf0EzWzMnz6WoF1dBs:v6RrviWaX7eiZJ7nz6bB
MD5 SHA1 SHA512 SSDEEP

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System.dll

Path \Users\Admin\AppData\Local\Temp\nse18DF.tmp\System.dll
Size 10KB
SHA256 802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd
MD5 fe24766ba314f620d57d0cf7339103c0
SHA1 8641545f03f03ff07485d6ec4d7b41cbb898c269
SHA512 60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3
SSDEEP 192:rO6dJA/ruAFEiUdWWE6hE5RYUdJfbub1aMBgMO:yKAFERdlxhGRYUzqZaMB
MD5 SHA1 SHA512 SSDEEP

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Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 78KB
SHA256 8f75ba9703c28b460025e05615222ed2b31e5eed829bfbab30bb029e873c0c24
MD5 490071c63a8583c44546421214809399
SHA1 f2268f3629b25b73b7f3ad984d867be01c19a670
SHA512 00301e21a10071a875b41ab8dbb715fad81af1c28f2badc8d2580b7b40ef52315fbd4af5e1e9a33c2070c3dc5c818632f0bed98f6e46d0869a3859997e12425b
SSDEEP 1536:PEkjY1zy214Qay0DGkJ7qAELVigJGo5hcpw/1q792sX7Ia12/DY:8kjAJ4dDGkJ+AI0bo1qRka0/U
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads