8ca4c77acc25bccf9a145be524d63e2a8364aaa6619cfb8efbdaf515532623f9

Analysis

max time kernel
149s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/04/2026, 04:02

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General

Target
2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
Size 3.9MB
Sample260417-elyt8shz3s
SHA256 8ca4c77acc25bccf9a145be524d63e2a8364aaa6619cfb8efbdaf515532623f9
MD5 875c6de20dd23271b8fa32e7db726ad3
SHA1 a33dfb1f50764382a760c240244be5c8c8d425d7
SHA512 d4fd365a44480ee6ff03eec716d308cc12e207a9da26f90498cc3f9c93eb6255d6ab395ba50ed4a4647862756217ed91938202da92fdc1dfd2b7747e90fdc052
SSDEEP 49152:HHBAo5hmnf4bacz1HHBAo5hmnf4bacz13UasqcVWmnf4baczV:wn7OCn7OxPFm3n7OV
TLSH
T11D169E129BE850FAE1B74A70D9368511AF32FC564B20D7DF63506A9A0D73BC09F3A712
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

ransomware spyware stealer

Malware Config

Signatures

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000025f8f-6.dat	UPX

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops file in Windows directory 9 IoCs

description	ioc	Process
File created	C:\Windows\explorer.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\HelpPane.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\notepad.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\regedit.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\bfsvc.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\hh.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\splwow64.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\winhlp32.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
File created	C:\Windows\write.exe	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe

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

System Information Discovery
T1082

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3760	notepad.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 3760	1104	2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe	82

C:\Users\Admin\AppData\Local\Temp\2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-17_875c6de20dd23271b8fa32e7db726ad3_amadey_cobalt-strike_coinminer_hijackloader_satacom_smoke-loader_stealc_vidar.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe" C:\Users\Admin\AppData\Local\Temp\WELBB3.tmp
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3760

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

vcredist_x86.exe

Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
Size 4.4MB
SHA256 132766a8ed4a2893686048e311c4b27818055a1cf93de5a636c2ec1587b54a2e
MD5 143823cef0aee47b34d1e2c4646f7817
SHA1 f31ca371217b73cd944aca3ea0f61b16c571c98c
SHA512 3b67ab4784d8afedbad849c9de4374acf12c3668a9a34a57a0e4909a8f2e3543d06521e841f4c435e3bec2fedb58ec2d55cfc5c5795d4106cc262598da5c4e00
SSDEEP 49152:HHBAo5hmnf4bacz1HHBAo5hmnf4bacz13UasqcVWmnf4baczVUasqc:wn7OCn7OxPFm3n7OVPF
TLSH
T19826BF129BE850BAE1B34A70D8368511AF32FC555B20D6DF63506E9E1E72BC09F7A313
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

WELBB3.tmp

Path C:\Users\Admin\AppData\Local\Temp\WELBB3.tmp
Size 52B
SHA256 be0909be27235c36586ceb9b7e37d8d74c423d9460c4dbf0e2417fcf58b96caa
MD5 17ddbb82a40e2ac704e1045da8fb1cf6
SHA1 a570cdbc16483567fe1439903b212e33b15343b7
SHA512 031adfce17522c42262d40acb75f1db7a1942e4965ab505ee3a5b7001e07a3f16182a4093a3e9a3b99b50860bbc66205a9956b4d8da76adb823054aae6598da2
TLSH
T1449002F35491D6301587051611E8118616566D9675199405E00811251AB56520515DDA
MD5 SHA1 SHA512 TLSH