MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00. 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


a310Logger


Vendor detections: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00
SHA3-384 hash: 5557f0937af21b71a18650daca94bad186fb32356ba30ea2e9cdd2c722dd2e6b5a794ae567b6083c985692a1a2792fcf
SHA1 hash: 63d22c0bf83ebdc394f61b6783f823bc775f81ab
MD5 hash: f7c693266030e150076028f659665667
humanhash: two-two-cola-snake
File name:f7c693266030e150076028f659665667
Download: download sample
Signature a310Logger
Create hunting rule
File size:25'088 bytes
First seen:2022-05-27 16:36:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'659 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 192:JEV3UtyAY9CO3mox4hWo3wUZlllllllllllllllllllllllllllllllllllllllr:JEV3jH4Ymox4ko3wmT/
Threatray 1'238 similar samples on MalwareBazaar
TLSH T19EB272149F8C4E36DA263BF25BA3F1410635EEC25956CB5864E030466DF2FF10EBE925
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 4730d8d4d4d830c7 (4 x NanoCore, 3 x SnakeKeylogger, 1 x BluStealer)
Reporter zbetcheckin
Tags:32 a310logger exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
698
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f7c693266030e150076028f659665667
Verdict:
Malicious activity
Analysis date:
2022-05-27 16:42:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0a067876-bcaa-4dad-8d4d-0aea22fc0a03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/275066/
Detection(s):
SecuriteInfo.com.BackDoor.SiggenNET.35.29029.17091.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Setting a single autorun event
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/6290fe46370bb1455cca6c9e/reports/537c34fc-4a38-4b66-b1e9-2442268c7532/overview
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/08bde303-1c25-4a7f-953c-e9331f32f8c1
Result
Threat name:
SpyEx, a310Logger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1002806
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Creates multiple autostart registry keys
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected a310Logger
Yara detected SpyEx stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 635302 Sample: j4wsBJ6J38 Startdate: 27/05/2022 Architecture: WINDOWS Score: 100 65 Snort IDS alert for network traffic 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 5 other signatures 2->71 7 j4wsBJ6J38.exe 16 7 2->7         started        12 Qjarsxlh.exe 14 4 2->12         started        14 Qjarsxlh.exe 3 2->14         started        16 2 other processes 2->16 process3 dnsIp4 61 3.124.188.36, 49741, 49791, 49794 AMAZON-02US United States 7->61 55 C:\Users\user\AppData\Local\...\Qjarsxlh.exe, PE32 7->55 dropped 57 C:\Users\...\Qjarsxlh.exe:Zone.Identifier, ASCII 7->57 dropped 59 C:\Users\user\AppData\...\j4wsBJ6J38.exe.log, ASCII 7->59 dropped 91 Creates multiple autostart registry keys 7->91 93 Writes to foreign memory regions 7->93 95 Allocates memory in foreign processes 7->95 18 InstallUtil.exe 2 2 7->18         started        22 InstallUtil.exe 7->22         started        24 cmd.exe 1 7->24         started        63 192.168.2.1 unknown unknown 12->63 97 Multi AV Scanner detection for dropped file 12->97 99 Machine Learning detection for dropped file 12->99 101 Injects a PE file into a foreign processes 12->101 26 cmd.exe 12->26         started        28 InstallUtil.exe 12->28         started        30 cmd.exe 14->30         started        32 InstallUtil.exe 14->32         started        34 conhost.exe 16->34         started        36 conhost.exe 16->36         started        file5 signatures6 process7 file8 53 C:\Users\user\AppData\...\fireboard.exe, PE32 18->53 dropped 73 Creates multiple autostart registry keys 18->73 75 Writes to foreign memory regions 18->75 77 Allocates memory in foreign processes 18->77 83 2 other signatures 18->83 38 AppLaunch.exe 1 18->38         started        79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->79 81 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 22->81 41 conhost.exe 24->41         started        43 timeout.exe 1 24->43         started        45 conhost.exe 26->45         started        47 timeout.exe 26->47         started        49 conhost.exe 30->49         started        51 timeout.exe 30->51         started        signatures9 process10 signatures11 85 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 38->85 87 Tries to steal Mail credentials (via file / registry access) 38->87 89 Tries to harvest and steal browser information (history, passwords, etc) 38->89
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-26 15:55:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e7q47dsoxvenqpnrfmvqsbb6lprnrvlyltp6zuacpnj7n5a67uaa._file
Verdict:
malicious
Similar samples:
1d19970cc9dbb2fbab3acafb0fb2d5988be9be0f10e975960668b44f34cbe152
a310Logger
2e09804cfcf88736779693667b5832e1380d3dc3e156dfb5ca6473f3d272d40c
a310Logger
3c5760b7a81ad1c6624c2ca1abe3a7e68c32f22b0e3bace1a06db8c5477907fd
a310Logger
4f52495f49903e95317345b2e0d7184b081c02b9a09fe36e14a7c058893fae50
a310Logger
842c71be80362f085b75a14b64f59e581f042064b1c34195cb2d2783339569a8
a310Logger
d65e148619e7370e495374722eca15b73817ed71e9917398c090098468fab533
a310Logger
d6f0adc68939dadf1673789efc9578fa08958bd6b5f20233a0d92cf12043c4ee
a310Logger
dabeda023e0d39ee7704b9bd9f18553964976d604109147508349f00cec82d19
a310Logger
f6a13b19a222723830d555d101eb6504db1ba089b0fd864a3ae4c21215254fdd
a310Logger
+ 1'228 additional samples on MalwareBazaar
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer persistence stealer
Link:
https://tria.ge/reports/220527-t4ss9sghfq/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
BluStealer
Unpacked files
SH256 hash:
27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00
MD5 hash:
f7c693266030e150076028f659665667
SHA1 hash:
63d22c0bf83ebdc394f61b6783f823bc775f81ab
Link:
https://www.unpac.me/results/89e44157-e3a7-40c7-a958-c7b5c1f05ea4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

a310Logger

Executable exe 27e1cf8e4ebd48d83db12b2b09043e5be2d8d5785cdfecd0027b53f6f41efd00

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2214426/
Cape
Cape
https://www.capesandbox.com/analysis/275066/

Comments


Avatar
zbet commented on 2022-05-27 16:36:54 UTC

url : hxxp://3.124.188.36/bay/loader/uploads/mt685762030.exe