61586ec214417f429259995e9d39fe5ca25fbbb2758ea03d93740b5bdc39136e

Analysis

max time kernel
300s
max time network
311s
platform
windows10-2004_x64
resource
win10v2004-20220812-es
resource tags

arch:x64arch:x86image:win10v2004-20220812-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
01/12/2022, 18:59

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General

Target

a.exe
Size

384KB
MD5

30e589f50658e3dea377e5550d58f0e3
SHA1

7b38309c0a1f44a0f803d0a6e038f3f407b78a7e
SHA256

61586ec214417f429259995e9d39fe5ca25fbbb2758ea03d93740b5bdc39136e
SHA512

9c7487e504d016e2b8b2d55675badf294f0913067ef0fc05178e8b7f240f3e52f09adfd03002c42870aa814a9c6deb1eb281c07ac7b32a4fbcabccba2db868c8
SSDEEP

12288:3sdXFfP7nn+brDT/nMmqM3ioVTPee9t5sgoJqrz:3OXFn7n+brvnvqMSoVTGK5s7J4z

Score

8^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1540	setup-stub.exe

Loads dropped DLL 11 IoCs

pid	Process
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.exe
1540	setup-stub.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

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\nsk88D0.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsk88D1.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsk88D0.tmp\	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsv88BF.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsk88CF.tmp	setup-stub.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nsv88BF.tmp\	setup-stub.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1540	setup-stub.exe
1540	setup-stub.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 1540	4672	a.exe	79
PID 4672 wrote to memory of 1540	4672	a.exe	79
PID 4672 wrote to memory of 1540	4672	a.exe	79

C:\Users\Admin\AppData\Local\Temp\a.exe
"C:\Users\Admin\AppData\Local\Temp\a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\7zS042AF236\setup-stub.exe
  .\setup-stub.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  PID:1540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

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\7zS042AF236\setup-stub.exe

Filesize
464KB

MD5
32b1aed8cda8677b31c3cec33b982462

SHA1
5966299d342e5c0a123551c49f97324494cd48ea

SHA256
d7840eea40a5a88af824f24473e95d0227e69c4439d6ea791d50cb94bf0cfb2a

SHA512
b9b33072350eff2f90e8e5bb84af9c78592c39bebeb8abc5775eb4f2cf87de2873e42d2ed3124772ead4b18a5618bf4a519bf334de0d07f2e87f5862c55454c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS042AF236\setup-stub.exe

Filesize
464KB

MD5
32b1aed8cda8677b31c3cec33b982462

SHA1
5966299d342e5c0a123551c49f97324494cd48ea

SHA256
d7840eea40a5a88af824f24473e95d0227e69c4439d6ea791d50cb94bf0cfb2a

SHA512
b9b33072350eff2f90e8e5bb84af9c78592c39bebeb8abc5775eb4f2cf87de2873e42d2ed3124772ead4b18a5618bf4a519bf334de0d07f2e87f5862c55454c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\CityHash.dll

Filesize
43KB

MD5
737379945745bb94f8a0dadcc18cad8d

SHA1
6a1f497b4dc007f5935b66ec83b00e5a394332c6

SHA256
d3d7b3d7a7941d66c7f75257be90b12ac76f787af42cd58f019ce0280972598a

SHA512
c4a43b3ca42483cbd117758791d4333ddf38fa45eb3377f7b71ce74ec6e4d8b5ef2bfbe48c249d4eaf57ab929f4301138e53c79e0fa4be94dcbcd69c8046bc22

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\CityHash.dll

Filesize
43KB

MD5
737379945745bb94f8a0dadcc18cad8d

SHA1
6a1f497b4dc007f5935b66ec83b00e5a394332c6

SHA256
d3d7b3d7a7941d66c7f75257be90b12ac76f787af42cd58f019ce0280972598a

SHA512
c4a43b3ca42483cbd117758791d4333ddf38fa45eb3377f7b71ce74ec6e4d8b5ef2bfbe48c249d4eaf57ab929f4301138e53c79e0fa4be94dcbcd69c8046bc22

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\InetBgDL.dll

Filesize
7KB

MD5
d4f7b4f9c296308e03a55cb0896a92fc

SHA1
63065bed300926a5b39eabf6efdf9296ed46e0cc

SHA256
6b553f94ac133d8e70fac0fcaa01217fae24f85d134d3964c1beea278191cf83

SHA512
d4acc719ae29c53845ccf4778e1d7ed67f30358af30545fc744facdb9f4e3b05d8cb7dc5e72c93895259e9882471c056395ab2e6f238310841b767d6acbcd6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\System.dll

Filesize
11KB

MD5
17ed1c86bd67e78ade4712be48a7d2bd

SHA1
1cc9fe86d6d6030b4dae45ecddce5907991c01a0

SHA256
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

SHA512
0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UAC.dll

Filesize
18KB

MD5
113c5f02686d865bc9e8332350274fd1

SHA1
4fa4414666f8091e327adb4d81a98a0d6e2e254a

SHA256
0d21041a1b5cd9f9968fc1d457c78a802c9c5a23f375327e833501b65bcd095d

SHA512
e190d1ee50c0b2446b14f0d9994a0ce58f5dbd2aa5d579f11b3a342da1d4abf0f833a0415d3817636b237930f314be54e4c85b4db4a9b4a3e532980ea9c91284

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UAC.dll

Filesize
18KB

MD5
113c5f02686d865bc9e8332350274fd1

SHA1
4fa4414666f8091e327adb4d81a98a0d6e2e254a

SHA256
0d21041a1b5cd9f9968fc1d457c78a802c9c5a23f375327e833501b65bcd095d

SHA512
e190d1ee50c0b2446b14f0d9994a0ce58f5dbd2aa5d579f11b3a342da1d4abf0f833a0415d3817636b237930f314be54e4c85b4db4a9b4a3e532980ea9c91284

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UserInfo.dll

Filesize
4KB

MD5
1b446b36f5b4022d50ffdc0cf567b24a

SHA1
d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9

SHA256
2862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922

SHA512
04ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UserInfo.dll

Filesize
4KB

MD5
1b446b36f5b4022d50ffdc0cf567b24a

SHA1
d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9

SHA256
2862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922

SHA512
04ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UserInfo.dll

Filesize
4KB

MD5
1b446b36f5b4022d50ffdc0cf567b24a

SHA1
d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9

SHA256
2862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922

SHA512
04ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\UserInfo.dll

Filesize
4KB

MD5
1b446b36f5b4022d50ffdc0cf567b24a

SHA1
d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9

SHA256
2862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922

SHA512
04ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu887F.tmp\WebBrowser.dll

Filesize
93KB

MD5
dfe24aa39f009e9d98b20b7c9cc070b1

SHA1
f48e4923c95466f689e8c5408265b52437ed2701

SHA256
8ec65a3d8ae8a290a6066773e49387fd368f5697392dfb58eac1b63640e30444

SHA512
665ce32d3776b1b41f95ed685054a796d0c1938dbc237619fa6309d1b52ae3bd44e3cf0a1f53ebf88556f7603111cca6dff1bfc917a911e0a9ce04affd0d5261

Download Submit
memory/1540-145-0x00000000022F0000-0x00000000022F8000-memory.dmp

Filesize
32KB

Download
memory/1540-138-0x00000000022F1000-0x00000000022F5000-memory.dmp

Filesize
16KB

Download