12f2835ca32bd0bdd31acdd143176fe863ec9972a8f0fafd0e8b4a5203789592

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
16/05/2024, 14:51

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General

Target

SkiSearchUninstall.exe
Size

242KB
MD5

23fcd13f2df081f6d9f5436f4ed3ed5f
SHA1

09bb76e16fcd6d4223e525540c8b126cc0e793b5
SHA256

65b52ff920260a45c3dc36bc328a8c2f3fe5e2b38d088f7507ef72868516dbf8
SHA512

edbf0f1741029b5155ab5b91c3951d05a66895180caf6d633890d14d5d28ba72fd86f3f0449a5b2d80db65a56f0c83c75b8f8433ba8683256e50e57547b8d767
SSDEEP

6144:qZ+11e9Z0y/1RWBT5ZdZrs4MwZm/G/HcpEx:Y9Gs1s15ZLip/G/8Gx

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2656	Au_.exe

Loads dropped DLL 7 IoCs

pid	Process
1276	SkiSearchUninstall.exe
2656	Au_.exe
2656	Au_.exe
2656	Au_.exe
2656	Au_.exe
2656	Au_.exe
2656	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral25/files/0x00090000000155f7-2.dat	nsis_installer_1
behavioral25/files/0x00090000000155f7-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2656	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28
PID 1276 wrote to memory of 2656	1276	SkiSearchUninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\SkiSearchUninstall.exe
"C:\Users\Admin\AppData\Local\Temp\SkiSearchUninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1276
- 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⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsyF0F.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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\Users\Admin\AppData\Local\Temp\nsyF0F.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

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\Users\Admin\AppData\Local\Temp\nsyF0F.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

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

Filesize
242KB

MD5
23fcd13f2df081f6d9f5436f4ed3ed5f

SHA1
09bb76e16fcd6d4223e525540c8b126cc0e793b5

SHA256
65b52ff920260a45c3dc36bc328a8c2f3fe5e2b38d088f7507ef72868516dbf8

SHA512
edbf0f1741029b5155ab5b91c3951d05a66895180caf6d633890d14d5d28ba72fd86f3f0449a5b2d80db65a56f0c83c75b8f8433ba8683256e50e57547b8d767

Download Submit