MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2. 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


Formbook


Vendor detections: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2
SHA3-384 hash: 446e6c87c47c6756520ba4c49465538c8414aedf69e08a5e9ba0119c469cfacc822e37619358308a9b7805470a75d0fa
SHA1 hash: a3addbdea8245b2e16c6ef551755b9d0e66e8e2b
MD5 hash: 492017e064cab97dd8ea27abd3e5cfca
humanhash: uniform-mockingbird-lima-alanine
File name:invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:894'464 bytes
First seen:2021-04-08 09:47:09 UTC
Last seen:2021-04-08 10:58:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:/eGIIK2eESBAcIRUpDrV5F4pO9q7d36dQc8fZVa0RdYrLST8BHVlnwC5IKUaE+:/e5IV6AVUF5Ipb/cmES4VlnFI/
Threatray 5'129 similar samples on MalwareBazaar
TLSH 391516E27118FB7ACC0406F26C9324E7CBB36C1F901DC79D24E6A5D92C985A68D3F265
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: box.germand.cyou
Sending IP: 188.166.160.26
From: Jalil Darvesh <marketing@cvsr.com>
Reply-To: butbox2019@yandex.com
Subject: send invoice, for the attached order!
Attachment: invoice.zip (contains "invoice.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-04-08 17:42:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac0c9510-3666-40f9-9755-250b7e45093a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/133160/
Detection(s):
SecuriteInfo.com.Artemis492017E064CA.22318.5068.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/669882
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 383898 Sample: invoice.exe Startdate: 08/04/2021 Architecture: WINDOWS Score: 100 31 www.harshdeepfashion.com 2->31 33 www.arizonagridiron.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 6 other signatures 2->47 11 invoice.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\invoice.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 invoice.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 hotelmaktub.com 177.55.108.130, 49732, 80 RedeHostInternetLtdaBR Brazil 18->35 37 www.highdeserthealthinsurance.com 74.208.236.64, 49731, 80 ONEANDONE-ASBrauerstrasse48DE United States 18->37 39 15 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 wscript.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-04-08 09:48:07 UTC
AV detection:
8 of 48 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kjbqnlznwyb4pw4vej3ahqybjnt4e7h3f6enclpcuwm6zysfoxra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
006dcd5baa67723c1d34336ca9d3eb55eb53cdb58999a8c6a3a64b28c2848220
Formbook
0132bc0987f049d7527b99c657edefbf62eefcc9bdb4766e6066160ca0bdf4e2
Formbook
1ed998332afc95e5830817b9f215468c55e67cd134c920b497521042bd6d4c38
Formbook
258415509125973a00bf2a625e5156afe82433c1c7f91f18a646fe91bc1543a9
Formbook
38b6a40d2eeddf38695294c57971fc2efab81fea95100260a2003baa13616b83
Formbook
6e7f8ff3782bb90e21df7fd4f7b61369e10b3965cde2cab0c24d6876809afb4e
Formbook
9b8e02c9169932cb809300c4dff5afc240aba4d5a87264f0f7123314345c6248
Formbook
b0762ca49381026932f488d2a816a18639c410ba45f456014861ac66b9b3f4e6
Formbook
ce399cb6f48a7daf6fd1ce9ffc9a0fe086d101fac2c11a1a636e1932d3303c90
Formbook
fd0cf58b93453778c312805f74673284da2548389ee866c37cc91431f0ba9cb1
Formbook
+ 5'119 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210408-rand3q9p8n/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.sookepointcargo.com/e3rs/
Unpacked files
SH256 hash:
c5519ef771321d62260735c62622297b284e823d97b29eed0dae704d89bb4c5f
MD5 hash:
0158502a4a1ee47ae2abfe604f2fd748
SHA1 hash:
3dec24548c89d943f3fe9a4dd0b8663cbdcf6e0d
Link:
https://www.unpac.me/results/b4a20c24-54cc-4799-a6e6-816350829e91/
SH256 hash:
524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2
MD5 hash:
492017e064cab97dd8ea27abd3e5cfca
SHA1 hash:
a3addbdea8245b2e16c6ef551755b9d0e66e8e2b
Link:
https://www.unpac.me/results/b4a20c24-54cc-4799-a6e6-816350829e91/
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/524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

zip fab54e71e831f385b3d547679fa69d43dadaddbe55ce1746e45204feb704c550

Formbook

Executable exe 524306af2db603c7db95227603c3014b67c27cfb2f88d12de2a599ece24575e2

(this sample)

  
Dropped by
MD5 5051bf8f1eff0bf5d24f64272193b3ea
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/133160/
  
Dropped by
SHA256 fab54e71e831f385b3d547679fa69d43dadaddbe55ce1746e45204feb704c550

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