MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e
SHA3-384 hash: 03d02a3a7eea69642f254e677d57fba6eb14d27b2bce3a9520f7f12f7b7c9be0440c73cd0183b331ca4c986e91853791
SHA1 hash: df85d8f256b8fd779d660f633eca94a7ea6c3cea
MD5 hash: cf3a28df3cd2682651ced75c40b06155
humanhash: leopard-cola-alanine-single
File name:VESSEL BOOKING DETAILS_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:251'295 bytes
First seen:2021-08-10 12:43:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b89f3af6e8726c625cba8a18b46cbaf3 (2 x AgentTesla, 2 x Formbook, 1 x OskiStealer)
ssdeep 6144:Na/djfLqZHNlXeQN/TezMUpyXVG71CRdzf:XfnNQpB8zf
Threatray 7'642 similar samples on MalwareBazaar
TLSH T18D34F11DBE1EFA49F87084BC7810E17F05887731549F5A777BD53F26A9A1288AA32D03
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
VESSEL BOOKING DETAILS_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-10 12:47:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5fd5623c-2441-44cd-969d-ee8321c050c2

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/177910/
Detection(s):
Win.Dropper.Remcos-9881376-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Launching the process to change network settings
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a system process
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/b101d5fe-9076-41ad-8baf-55232093ed94
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/830142
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Dridex Process Pattern
Sigma detected: Suspicious Svchost Process
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 462573 Sample: VESSEL BOOKING DETAILS_pdf.exe Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 7 other signatures 2->41 10 VESSEL BOOKING DETAILS_pdf.exe 1 2->10         started        process3 signatures4 51 Writes to foreign memory regions 10->51 53 Maps a DLL or memory area into another process 10->53 13 svchost.exe 10->13         started        16 conhost.exe 10->16         started        process5 signatures6 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 2 other signatures 13->61 18 explorer.exe 13->18 injected process7 dnsIp8 29 compragospel.com 216.172.172.62, 49771, 80 UNIFIEDLAYER-AS-1US United States 18->29 31 pickyclick.com 172.96.187.187, 49770, 80 SINGLEHOP-LLCUS Canada 18->31 33 15 other IPs or domains 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 wlanext.exe 18->22         started        signatures9 process10 signatures11 45 Modifies the context of a thread in another process (thread injection) 22->45 47 Maps a DLL or memory area into another process 22->47 49 Tries to detect virtualization through RDTSC time measurements 22->49 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2021-07-23 04:06:08 UTC
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gnl3jke5yyrxqe2v7z5gomzjs5lxpmvfz2fcauofhdolpvewtsha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0ccc6514caee09ed66f24a7883aa22194e523834485f752684d0ddd727e39487
Formbook
1dc173b24c0b503a394568e4a1fff7887dd739cc287e529f25b173dbfea4010b
Formbook
456614711c0a92e9455fc588f27889ee37c509b2f5e8c901d351346e8cf6140c
Formbook
9c1b8a048c401c6239f1043e409074793801485ad0ea9a35b7a4e308263e2cdf
Formbook
a7167abf716c8462ee7032b94b01b4e2ae49ea5dd9610138112bcbdad991ef03
Formbook
d03e629a7a5926d3ee220bd52f01430358de8b2f0d6c13cdb26b44fbe27182e7
Formbook
f6bd2853a8346c75b10f30184adf3a12ddcc7b25dac4a1b0a5e281179b1e1322
Formbook
+ 7'632 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b6a4 loader rat suricata
Link:
https://tria.ge/reports/210810-g5v38fs4ss/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.miraculousventures.com/b6a4/
Unpacked files
SH256 hash:
253bf03a2c2a9ef10b5a43251da06bc24821982e850763c186f71e329b834d73
MD5 hash:
85112aab07abc2d8f8013ced4e1e7767
SHA1 hash:
7ef382e9f7caf0d2a0301d446710dd36209c3da7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/95b61a36-8a17-48d5-b593-23d015d439ea/
Parent samples :
9c1b8a048c401c6239f1043e409074793801485ad0ea9a35b7a4e308263e2cdf
0ccc6514caee09ed66f24a7883aa22194e523834485f752684d0ddd727e39487
f6bd2853a8346c75b10f30184adf3a12ddcc7b25dac4a1b0a5e281179b1e1322
3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e
SH256 hash:
3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e
MD5 hash:
cf3a28df3cd2682651ced75c40b06155
SHA1 hash:
df85d8f256b8fd779d660f633eca94a7ea6c3cea
Link:
https://www.unpac.me/results/95b61a36-8a17-48d5-b593-23d015d439ea/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3357b4a89dc6/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/3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e

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

Executable exe 3357b4a89dc623781355fe7a673329975777b2a5ce8a2051c538dcb7d4969c8e

(this sample)

  
Dropped by
null
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/177910/

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