MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe
SHA3-384 hash: 5a48007a24054abc5b8def6a7b6adfc819ae3e6e4aa1a6e71cb7e4c50020825fdd98bfa3c83b6e4c00fbfae3607531b0
SHA1 hash: 619af6bf696d00d8a5f50f320486e28a28736933
MD5 hash: 9fbfa26e891d310cf1c766834b76b1e3
humanhash: beer-bakerloo-fifteen-indigo
File name:LPO 19029877_2021082267673554635,xlsx.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:1'272'832 bytes
First seen:2021-08-22 02:17:39 UTC
Last seen:2021-08-22 02:55:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Jrrna/Z+FPJYAocuxb8Jvb4DWBFAy4+ViNVhJHP:U/OBAt8Jv0DYFAyVoVhJHP
TLSH T15845393D19B91B37D179C365EBE44413B2D99C1FF600EE566CDE23A7022AA4635C322E
dhash icon 0027070d0d070708 (2 x a310Logger)
Reporter GovCERT_CH
Tags:a310logger exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LPO 19029877_2021082267673554635,xlsx.exe
Verdict:
Malicious activity
Analysis date:
2021-08-22 02:20:34 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/c8372733-aec4-4bbd-8f97-ef355b4fc0eb

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/181158/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.18986.11737.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Reading critical registry keys
Unauthorized injection to a recently created process
Stealing user critical data
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/48ed6a2c-5071-41ce-bd01-edda5f8128d3
Result
Threat name:
a310Logger
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/836906
Signature
.NET source code contains very large strings
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected a310Logger
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 469334 Sample: LPO 19029877_20210822676735... Startdate: 22/08/2021 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Yara detected a310Logger 2->48 50 Yara detected AntiVM3 2->50 52 5 other signatures 2->52 7 LPO 19029877_2021082267673554635,xlsx.exe 7 2->7         started        process3 file4 22 C:\Users\user\AppData\Roaming\PZnirYwzu.exe, PE32 7->22 dropped 24 C:\Users\...\PZnirYwzu.exe:Zone.Identifier, ASCII 7->24 dropped 26 C:\Users\user\AppData\Local\...\tmpD795.tmp, XML 7->26 dropped 28 LPO 19029877_20210...554635,xlsx.exe.log, ASCII 7->28 dropped 54 Injects a PE file into a foreign processes 7->54 11 LPO 19029877_2021082267673554635,xlsx.exe 3 5 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 32 yekamuhendislik.com 89.252.134.35, 587 NETINTERNETNetinternetBilisimTeknolojileriASTR Turkey 11->32 34 192.168.2.1 unknown unknown 11->34 36 mail.yekamuhendislik.com 11->36 30 C:\Users\user\AppData\Roaming\...\Fox.exe, PE32 11->30 dropped 17 Fox.exe 3 11->17         started        20 conhost.exe 15->20         started        file8 process9 signatures10 38 Multi AV Scanner detection for dropped file 17->38 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->40 42 Tries to steal Instant Messenger accounts or passwords 17->42 44 3 other signatures 17->44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-08-22 01:31:22 UTC
AV detection:
15 of 46 (32.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yt3szai2pnxyhogn4qgly5l3h3kr5lvhyvpnzrxwle4j2aiwq77a._file
Verdict:
unknown
Result
Malware family:
a310logger
Create hunting rule
Score:
  10/10
Tags:
family:a310logger spyware stealer
Link:
https://tria.ge/reports/210822-lthn3jkgbs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Reads local data of messenger clients
Reads user/profile data of web browsers
Executes dropped EXE
A310logger Executable
A310logger
Unpacked files
SH256 hash:
584ab729bc443637fc4ae198ced8bdbb0dec0095ecf78fbd350d4ab07626e438
MD5 hash:
91266f212712b5e2061609e330267ccc
SHA1 hash:
485ca13a56cf93f61b72c051d19834a5ac6acc6b
Link:
https://www.unpac.me/results/53c46396-41f4-4519-8435-e0664d8c1d3d/
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/53c46396-41f4-4519-8435-e0664d8c1d3d/
SH256 hash:
61e62e23be360a6f3454ab52c53b70e3fd0fa42b2fa1748722fb99bc5ae97040
MD5 hash:
49982dd857e02c5effdc84f534ceaa4f
SHA1 hash:
6f68050e372b929c7f2e6fea36d37c85d5f54efe
Link:
https://www.unpac.me/results/53c46396-41f4-4519-8435-e0664d8c1d3d/
SH256 hash:
c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe
MD5 hash:
9fbfa26e891d310cf1c766834b76b1e3
SHA1 hash:
619af6bf696d00d8a5f50f320486e28a28736933
Link:
https://www.unpac.me/results/53c46396-41f4-4519-8435-e0664d8c1d3d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c4f72c811a7b/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/c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe

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: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.

Malspam

a310Logger

Executable exe c4f72c811a7b6f83b8cde40cbc757b3ed51eaea7c55edcc6f659389d011687fe

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/181158/

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