Analysis
-
max time kernel
44s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
24-05-2022 21:19
Static task
static1
Behavioral task
behavioral1
Sample
41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe
Resource
win10v2004-20220414-en
General
-
Target
41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe
-
Size
4.7MB
-
MD5
d2654d7085cfa021953f9a42c8057bba
-
SHA1
e86ad4024e568938ca94454f00d04a9303f5f7af
-
SHA256
41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf
-
SHA512
2767f4ab916d58a0700d1df4933f6b8edb7d6e54ec9920a6b228ae1c130563942dbf4828e7ca9066fa71f1f195047a3b78a38e63ef67a0d8232f1599d4f00ea3
Malware Config
Signatures
-
SatanCryptor
Golang ransomware first seen in early 2020.
-
suricata: ET MALWARE Possible Satan Cryptor GeoIP Lookup
suricata: ET MALWARE Possible Satan Cryptor GeoIP Lookup
-
Deletes itself 1 IoCs
pid Process 1688 cmd.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\N6KW9TJE\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Documents\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Libraries\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Pictures\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\VCRELHVT\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Videos\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Desktop\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\A9INZ3MO\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\VP7YQ4XO\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Links\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Downloads\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Videos\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Searches\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Music\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Music\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Documents\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 extreme-ip-lookup.com -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 6 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1452 wrote to memory of 1820 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 28 PID 1452 wrote to memory of 1820 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 28 PID 1452 wrote to memory of 1820 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 28 PID 1452 wrote to memory of 1820 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 28 PID 1452 wrote to memory of 1688 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 31 PID 1452 wrote to memory of 1688 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 31 PID 1452 wrote to memory of 1688 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 31 PID 1452 wrote to memory of 1688 1452 41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe 31
Processes
-
C:\Users\Admin\AppData\Local\Temp\41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe"C:\Users\Admin\AppData\Local\Temp\41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe"1⤵
- Drops desktop.ini file(s)
- Suspicious use of WriteProcessMemory
PID:1452 -
C:\Windows\SysWOW64\cmd.execmd /c ver2⤵PID:1820
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C del C:\Users\Admin\AppData\Local\Temp\41c059f4dfaa143cc75df07f38f50d7d6ac0c6416d3e21aac2e530683c037fdf.exe2⤵
- Deletes itself
PID:1688
-