MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Stealc


Vendor detections: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c
SHA3-384 hash: ac35aa57c7e6f99a6b8b8c10acaedaf023c99471c23df4e572423dfa7aa1056559b5dbd96c09880ad0b59c6a2cbbf3cc
SHA1 hash: 8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb
MD5 hash: ef70b147c0a5d36421a2e3a444d24f2c
humanhash: april-king-louisiana-lactose
File name:EF70B147C0A5D36421A2E3A444D24F2C.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:314'368 bytes
First seen:2023-10-21 10:35:05 UTC
Last seen:2023-10-21 11:49:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f722e751a647e22fa4d7e966bdaa4f04 (2 x Amadey, 1 x Stealc)
ssdeep 6144:a7bWZGyntnUkg3RqWJLdb54Y4y2egsM7u67LnAOZiZVvL:a7a9U/3RXJP4Ts8u67LGVvL
Threatray 5 similar samples on MalwareBazaar
TLSH T1F4643A517916C032D56061B21AB5BFB2C59D6C199FB04AEF6BC00E76DA212E3BD30F39
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://77.91.97.146/b5186114a247f330.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
279
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
EF70B147C0A5D36421A2E3A444D24F2C.exe
Verdict:
Malicious activity
Analysis date:
2023-10-21 10:48:15 UTC
Tags:
amadey botnet stealer loader
Link:
https://app.any.run/tasks/6401c26c-7cd7-4675-953d-0170279db0b3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.42941.18050.29297.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Launching cmd.exe command interpreter
Creating a file
Delayed reading of the file
Creating a file in the %AppData% subdirectories
Adding an access-denied ACE
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
amadey control greyware lolbin shell32 zusy
Link:
https://www.filescan.io/uploads/6533a993e3768e7905c4a836/reports/f674d54c-d8b6-40a2-9e50-99858b2dbc11/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/98acd6dc-863e-4a08-8b97-8bc05afb58bc
Result
Threat name:
Amadey
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329654
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Creates an undocumented autostart registry key
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Amadeys Clipper DLL
Yara detected Amadeys stealer DLL
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1329654 Sample: f5B4tmNZVz.exe Startdate: 21/10/2023 Architecture: WINDOWS Score: 100 59 drmaryampsychiatrist.com 2->59 67 Snort IDS alert for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 8 other signatures 2->73 10 f5B4tmNZVz.exe 4 2->10         started        14 Utsysc.exe 2->14         started        16 Utsysc.exe 2->16         started        18 3 other processes 2->18 signatures3 process4 file5 57 C:\Users\user\AppData\Local\...\Utsysc.exe, PE32 10->57 dropped 83 Contains functionality to inject code into remote processes 10->83 20 Utsysc.exe 21 10->20         started        signatures6 process7 dnsIp8 61 77.91.97.162, 49737, 49738, 49740 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 20->61 63 drmaryampsychiatrist.com 66.11.124.73, 80 DC74-ASUS United States 20->63 49 C:\Users\user\AppData\Roaming\...\cred64.dll, PE32+ 20->49 dropped 51 C:\Users\user\AppData\Roaming\...\clip64.dll, PE32 20->51 dropped 53 C:\Users\user\AppData\Local\...\clip64[1].dll, PE32 20->53 dropped 55 C:\Users\user\AppData\Local\...\cred64[1].dll, PE32+ 20->55 dropped 75 Multi AV Scanner detection for dropped file 20->75 77 Creates an undocumented autostart registry key 20->77 79 Machine Learning detection for dropped file 20->79 81 Uses schtasks.exe or at.exe to add and modify task schedules 20->81 25 rundll32.exe 20->25         started        27 rundll32.exe 12 20->27         started        30 cmd.exe 1 20->30         started        32 schtasks.exe 1 20->32         started        file9 signatures10 process11 signatures12 34 rundll32.exe 25->34         started        85 System process connects to network (likely due to code injection or exploit) 27->85 37 conhost.exe 30->37         started        39 cmd.exe 1 30->39         started        41 cacls.exe 1 30->41         started        45 4 other processes 30->45 43 conhost.exe 32->43         started        process13 signatures14 65 Tries to harvest and steal browser information (history, passwords, etc) 34->65 47 WerFault.exe 20 16 34->47         started        process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2023-10-15 17:38:08 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nbuehveidhcmkpqdzmpmuwskiaec7ysmeanqdttmb3wl47c2pyoa._file
Verdict:
malicious
Similar samples:
19f0386456060982bf9880a31c55022371ea3825c10f5ecca1310c8219ed738c
Stealc
1ab121c22361884aa13cc654a4e79a6e70240d3ef60bc1e660aeef7bde168aa3
Stealc
2d93ffc4f232bcc5f7c2a19d8fcbaa50884e60a027804fcecc3c40d120eedc8c
Stealc
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc discovery spyware stealer trojan
Link:
https://tria.ge/reports/231021-mm81laff33/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads user/profile data of web browsers
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Amadey
Stealc
Malware Config
C2 Extraction:
http://77.91.97.146
Unpacked files
SH256 hash:
686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c
MD5 hash:
ef70b147c0a5d36421a2e3a444d24f2c
SHA1 hash:
8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb
Detections:
Amadey
Create hunting rule
Link:
https://www.unpac.me/results/90207eea-4b96-4390-9be1-ba893ca832c2/
Parent samples :
19f0386456060982bf9880a31c55022371ea3825c10f5ecca1310c8219ed738c
686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/686843d48819/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Amadey
Create hunting rule
Author:kevoreilly
Description:Amadey Payload
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_Amadey
Create hunting rule
Author:ditekSHen
Description:Amadey downloader payload
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Amadey_7abb059b
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_amadey_a9f4
Create hunting rule
Author:Johannes Bader
Description:matches unpacked Amadey samples
Rule name:win_amadey_bytecodes_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yarahub_win_stealc_bytecodes_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yara_template
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments