MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665. 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: 63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665
SHA3-384 hash: fd3d47f8f3a9f6c65b0d3db14c155f1dbf1ff6557e947be225e8630d73b00b3f2b9fa92908437a7cf98cd75c02474c17
SHA1 hash: 471c6f8e741275842e5de5568a968a7e0e4b9dbd
MD5 hash: fe1fa2961da990186a3111d595072030
humanhash: virginia-south-burger-enemy
File name:RFQ-V-SAM-0321D056-DOC.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:207'391 bytes
First seen:2021-04-06 08:19:45 UTC
Last seen:2021-04-06 09:42:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9c523d8653da5455667e3f82274f2f88 (6 x Formbook, 2 x SnakeKeylogger, 1 x AZORult)
ssdeep 3072:AbLpZuEskJ1Khasn8EeOaFMtUjMvz2qEOAzH7goVmF2u5G1s2i6qTdiZh41t2yEo:AbOf4NEtbeoaq9obVVo26xiZS1fbB
Threatray 2'114 similar samples on MalwareBazaar
TLSH 05141206E7D284FBEE830A39D9577A52EB77E94103252B8B5BCA4FC334061DB849B407
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: imaritime.sg
Sending IP: 103.99.1.146
From: purchasing1@imaritime.sg
Reply-To: purchasing1@imaritime.sg
Subject: Quotation for vessel Silvia Ambition - RFQ-V-SAM-0321D056 is kindly requested
Attachment: RFQ-V-SAM-0321D056-DOC.gz (contains "RFQ-V-SAM-0321D056-DOC.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-V-SAM-0321D056-DOC.exe
Verdict:
Malicious activity
Analysis date:
2021-04-06 08:20:15 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/1a262990-0df0-4c40-be9e-af23b4d4750a

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/132630/
Detection(s):
SecuriteInfo.com.FakeAV.AVB.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Connection attempt
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/667329
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected unpacking (changes PE section rights)
Found malware configuration
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 382595 Sample: RFQ-V-SAM-0321D056-DOC.exe Startdate: 06/04/2021 Architecture: WINDOWS Score: 100 31 www.agenciacolman.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 4 other signatures 2->45 11 RFQ-V-SAM-0321D056-DOC.exe 19 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\Temp\...\pyzx.dll, PE32 11->29 dropped 57 Detected unpacking (changes PE section rights) 11->57 59 Maps a DLL or memory area into another process 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Contains functionality to prevent local Windows debugging 11->63 15 RFQ-V-SAM-0321D056-DOC.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.zwk.xyz 64.190.62.111, 49737, 80 NBS11696US United States 18->33 35 www.cabinflooresoterica.com 37.48.65.145, 49717, 80 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 18->35 37 17 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 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/63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-04-06 05:01:52 UTC
AV detection:
11 of 48 (22.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mo4uifom6l5l7456hkar33m2kmdnncwbs6w4a7l4fpr3ge7iuzsq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1c0a0e62b6945e4613b04e61cfc76b876d647b632ccf5d72d9d1e24fa967550f
Formbook
1de5c6b986a6401ba0490ccce78e8bf125d9604d07c4ad87a856a588f0aba6cb
Formbook
6da50c6b31b4125631987f40d7bd3dacab22c961ca9ba60dfdfa45120d5ec17a
Formbook
8d96cdba8c8ac7896773c03f0ab27a5cebe912d9cc6614fda1e149191fc6a7c7
Formbook
9cf07e6cbf0321dc63141d5d14b6df920c9c90ee178636def703946324fec78b
Formbook
a3d951fa76fbb0f24540b97767e2d327b9bdb2e6e93721cb3da4ac5370118dbc
Formbook
a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
Formbook
dcea3ce074a9cc06d03641b052fe3a3f81abb72c480de228b8664dade74c4dce
Formbook
e4938a8244543631ae11deb46e8b4cc3f0a8b8b7c2d4a1246f5bfadb29e0094c
Formbook
e6e9f774351440aef9b0b309282155ad0258f6e97da820170384454711e4bef8
Formbook
+ 2'104 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210406-ygc46n21qs/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.cheristolentino.com/uwec/
Unpacked files
SH256 hash:
5970d0a9ae9346f6fafa90a5ee323063cdca694ba7c151f6ddd37f3fbf8959cc
MD5 hash:
719df627cfce3fcea75ee76de74cc3be
SHA1 hash:
27f2eab478c9ac7f0e7af8af446bf4453e4d99f2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/11e0de0f-94d3-49f3-a79d-8cbc59061135/
SH256 hash:
b141506ccf9a46d981afc020a39525bfce27bd95c1c5bfa64e5ba1ff09c673aa
MD5 hash:
0eba8f6e01b1fac6bf8c58079624b6ef
SHA1 hash:
4d051b78d4ab519a97ce0fd0ba440b0fd5ee8d6e
Link:
https://www.unpac.me/results/11e0de0f-94d3-49f3-a79d-8cbc59061135/
SH256 hash:
63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665
MD5 hash:
fe1fa2961da990186a3111d595072030
SHA1 hash:
471c6f8e741275842e5de5568a968a7e0e4b9dbd
Link:
https://www.unpac.me/results/11e0de0f-94d3-49f3-a79d-8cbc59061135/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.67
Link:
https://yomi.yoroi.company/submissions/63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665

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 869c1837fdbe9cb32f836053e98f8a3902705cf388141b50c40095518b36f01f

Formbook

Executable exe 63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665

(this sample)

  
Dropped by
MD5 36eddd1e53fcb19a0b1e816f6f6fc433
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 869c1837fdbe9cb32f836053e98f8a3902705cf388141b50c40095518b36f01f
Cape
Cape
https://www.capesandbox.com/analysis/132630/

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