c0180ab08a632ea62fe121cc4d36b5d92857ca18c7cbc063849d07b2cc4b62a4

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2023 14:09

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General

Target

b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe
Size

389KB
MD5

7e40b2f75e86fde0f345cf53e96a7090
SHA1

3c0acefc3c4d452449fa5efa7a2d3167f71ca9e0
SHA256

b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3
SHA512

10546997570c02ad1b8fdba0d089676787a464d5e7436c633c3e4272348abdbd464fa9344644ed260a18f5cd41a0b4abdb0a9a37453ea4d803bc1fd8f3df84e8
SSDEEP

12288:FvHOmh9159ZWAnMmcLVxzXlTsJ3w4mGjrtDLhzjeq:5Z15FnvcJxzRsxXmGf5Lh3

Score

7^/10

spyware stealer upx

Malware Config

Signatures

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
T1552.001

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4348-0-0x0000000000920000-0x0000000000981000-memory.dmp	upx
behavioral2/memory/4348-75-0x0000000000920000-0x0000000000981000-memory.dmp	upx

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E58.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E57.tmp\	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E55.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E56.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E55.tmp\	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsz9E57.tmp	setup-stub.exe

Executes dropped EXE 1 IoCs

pid	Process
3996	setup-stub.exe

Loads dropped DLL 7 IoCs

pid	Process
3996	setup-stub.exe
3996	setup-stub.exe
3996	setup-stub.exe
3996	setup-stub.exe
3996	setup-stub.exe
3996	setup-stub.exe
3996	setup-stub.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1616	3996	WerFault.exe	88

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3996	setup-stub.exe
3996	setup-stub.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 3996	4348	b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe	88
PID 4348 wrote to memory of 3996	4348	b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe	88
PID 4348 wrote to memory of 3996	4348	b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe	88

C:\Users\Admin\AppData\Local\Temp\b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe
"C:\Users\Admin\AppData\Local\Temp\b66ce35796756741b46d1663fb5c191514233b2fdd00f1bd44e127deb4f26be3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Users\Admin\AppData\Local\Temp\7zSCF0DF8D7\setup-stub.exe
  .\setup-stub.exe
  2⤵
  - Drops file in Program Files directory
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  PID:3996
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 2492
    3⤵
    - Program crash
    PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3996 -ip 3996
1⤵
PID:1460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zSCF0DF8D7\setup-stub.exe

Filesize
551KB

MD5
117cd045562fe512e6375b68af0b7480

SHA1
70fabd822d3a50154703daaa54b5128f7f90af96

SHA256
5463813eca42cb1c8d189e116e116787b38037c9fbd2a0dbf370b4b2567bbb8f

SHA512
88163cdc6db9920bd24ae476bd41e8f059865aa1662d49e957c37374fce857fe7e2a0029d9d5082d58e79a82a4e84d73e10e87f022747684e72cc77f5e372de4

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSCF0DF8D7\setup-stub.exe

Filesize
551KB

MD5
117cd045562fe512e6375b68af0b7480

SHA1
70fabd822d3a50154703daaa54b5128f7f90af96

SHA256
5463813eca42cb1c8d189e116e116787b38037c9fbd2a0dbf370b4b2567bbb8f

SHA512
88163cdc6db9920bd24ae476bd41e8f059865aa1662d49e957c37374fce857fe7e2a0029d9d5082d58e79a82a4e84d73e10e87f022747684e72cc77f5e372de4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\CityHash.dll

Filesize
53KB

MD5
2021acc65fa998daa98131e20c4605be

SHA1
2e8407cfe3b1a9d839ea391cfc423e8df8d8a390

SHA256
c299a0a71bf57eb241868158b4fcfe839d15d5ba607e1bdc5499fdf67b334a14

SHA512
cb96d3547bab778cbe94076be6765ed2ae07e183e4888d6c380f240b8c6708662a3b2b6b2294e38c48bc91bf2cc5fc7cfcd3afe63775151ba2fe34b06ce38948

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\InetBgDL.dll

Filesize
17KB

MD5
97c607f5d0add72295f8d0f27b448037

SHA1
dfb9a1aa1d3b1f7821152afaac149cad38c8ce3c

SHA256
dc98ed352476af459c91100b8c29073988da19d3adc73e2c2086d25f238544a5

SHA512
ad759062152869089558389c741876029198c5b98fa725e2d2927866dc8b416ae2de871cb2479f614f6d29b6f646bf7191d02837c3cabc15b8185b563bc46268

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\System.dll

Filesize
22KB

MD5
b361682fa5e6a1906e754cfa08aa8d90

SHA1
c6701aee0c866565de1b7c1f81fd88da56b395d3

SHA256
b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04

SHA512
2778f91c9bcf83277d26c71118a1ccb0fb3ce50e89729f14f4915bc65dd48503a77b1e5118ce774dea72f5ce3cc8681eb9ca3c55cf90e9f61a177101ba192ae9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\UAC.dll

Filesize
28KB

MD5
d23b256e9c12fe37d984bae5017c5f8c

SHA1
fd698b58a563816b2260bbc50d7f864b33523121

SHA256
ec6a56d981892bf251df1439bea425a5f6c7e1c7312d44bedd5e2957f270338c

SHA512
13f284821324ffaeadafd3651f64d896186f47cf9a68735642cf37b37de777dba197067fbccd3a7411b5dc7976e510439253bd24c9be1d36c0a59d924c17ae8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\UserInfo.dll

Filesize
14KB

MD5
610ad03dec634768cd91c7ed79672d67

SHA1
dc8099d476e2b324c09db95059ec5fd3febe1e1e

SHA256
c6c413108539f141bea3f679e0e2ef705898c51ec7c2607f478a865fc5e2e2df

SHA512
18c3c92be81aadfa73884fe3bdf1fce96ccfbd35057600ef52788a871de293b64f677351ba2885c6e9ce5c3890c22471c92832ffc13ba544e9d0b347c5d33bfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\UserInfo.dll

Filesize
14KB

MD5
610ad03dec634768cd91c7ed79672d67

SHA1
dc8099d476e2b324c09db95059ec5fd3febe1e1e

SHA256
c6c413108539f141bea3f679e0e2ef705898c51ec7c2607f478a865fc5e2e2df

SHA512
18c3c92be81aadfa73884fe3bdf1fce96ccfbd35057600ef52788a871de293b64f677351ba2885c6e9ce5c3890c22471c92832ffc13ba544e9d0b347c5d33bfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\UserInfo.dll

Filesize
14KB

MD5
610ad03dec634768cd91c7ed79672d67

SHA1
dc8099d476e2b324c09db95059ec5fd3febe1e1e

SHA256
c6c413108539f141bea3f679e0e2ef705898c51ec7c2607f478a865fc5e2e2df

SHA512
18c3c92be81aadfa73884fe3bdf1fce96ccfbd35057600ef52788a871de293b64f677351ba2885c6e9ce5c3890c22471c92832ffc13ba544e9d0b347c5d33bfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\WebBrowser.dll

Filesize
103KB

MD5
b53cd4ad8562a11f3f7c7890a09df27a

SHA1
db66b94670d47c7ee436c2a5481110ed4f013a48

SHA256
281a0dc8b4f644334c2283897963b20df88fa9fd32acca98ed2856b23318e6ec

SHA512
bb45d93ed13df24a2056040c219cdf36ee44c8cddb7e178fdaabcec63ac965e07f679ca1fa42591bba571992af619aa1dc76e819a7901709df79598a2b0cef81

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\profile_cleanup.html

Filesize
1KB

MD5
72e70244833cb1c8bad6fa8f98fc14d5

SHA1
6abdc75d0bd50fd1796872661fa26e2e2e0f8fb9

SHA256
aec8db1b7a2d3b09505ed0762d829c3786cf4e2b74ede492aee3631126e21a65

SHA512
9fbc15af2c9b60d0405ff3e89f40789ac1cd4c8f792dbbd5ec3931134a150d72dee758e26a9911c31db1d44b78b9708d93a86d534253b9c296bd23fdd5237351

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\profile_cleanup.js

Filesize
1KB

MD5
ba983408ac62250294557403ceabad7a

SHA1
3b7b9987c6fb4957e93148ac389bed111b3b23cf

SHA256
6476d0dcd6dbeb786ddb5467b7ba6ebe5f6571015fa96397087c108d2f7ce8dd

SHA512
7dd93520631a1d5a41c26a75ce0420893ad9c097cc3dc64fda31a964f81c4b19692e7d4e32db19029f05d40c98eed430bb27d9b37f1d4a094bcf3f19e2fca637

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9E25.tmp\stub_common.js

Filesize
817B

MD5
58b8ac894c64370cfa137f5848aeb88d

SHA1
6a1ac1f88a918a232b79fe798b2de69cf433945f

SHA256
0e28aa770b0afade30be85c6dc1e50344db8f8cdd3fa01989d81a9e20a4990bd

SHA512
ae309518e0f926021e4d9378950c1a375263247d4f79d8a8cc09464cd01653ae5e707d52a4b0c36d532e649c246f4be6b5ba8648f58fb0e3e40c495ae63180ab

Download Submit
memory/4348-0-0x0000000000920000-0x0000000000981000-memory.dmp

Filesize
388KB

Download
memory/4348-75-0x0000000000920000-0x0000000000981000-memory.dmp

Filesize
388KB

Download