MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12
SHA3-384 hash: 5390fc0f6f812289a6c71c1b609b7942f721d53d64e3c9dd14b1cbc5685b2df4fe9da16bdd7d4f3b3bee9b887eaf4f82
SHA1 hash: 43dc1293b6f92d3d34abd2a9419ac861222c6a73
MD5 hash: 1ddf5f1911be0eef1b4fb3fa34b9d1e8
humanhash: table-green-pizza-solar
File name:shippment document.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:528'384 bytes
First seen:2022-01-20 11:06:24 UTC
Last seen:2022-01-20 13:03:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:mzAK777777777777N7XPjyOds3v4IYam8ghAw12n8McmLR/B2m:kAK777777777777lX7yOdKv4IYam7ht8
Threatray 11'632 similar samples on MalwareBazaar
TLSH T1C8B4F04F7A598672CEF04EB8549484A04F796D5F2012C21638FCFEAE35B37C4464E6AB
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/221064/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.32691.20638.22344.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/61e9426d0f8c757253d03f97/reports/55959f29-c3db-4163-b301-296880ad3cab/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/a640378d-d52d-480c-aca2-a6bdebbcf613
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/924260
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
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)
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 dropped file
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 556736 Sample: shippment document.exe Startdate: 20/01/2022 Architecture: WINDOWS Score: 100 45 www.nicholsenterprise.com 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 15 other signatures 2->59 10 shippment document.exe 7 2->10         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\wQfUKXwWEHJ.exe, PE32 10->37 dropped 39 C:\Users\...\wQfUKXwWEHJ.exe:Zone.Identifier, ASCII 10->39 dropped 41 C:\Users\user\AppData\Local\...\tmpB1DE.tmp, XML 10->41 dropped 43 C:\Users\user\...\shippment document.exe.log, ASCII 10->43 dropped 73 Adds a directory exclusion to Windows Defender 10->73 75 Injects a PE file into a foreign processes 10->75 14 shippment document.exe 10->14         started        17 powershell.exe 24 10->17         started        19 schtasks.exe 1 10->19         started        21 3 other processes 10->21 signatures6 process7 signatures8 77 Modifies the context of a thread in another process (thread injection) 14->77 79 Maps a DLL or memory area into another process 14->79 81 Sample uses process hollowing technique 14->81 83 Queues an APC in another process (thread injection) 14->83 23 msdt.exe 14->23         started        26 explorer.exe 14->26 injected 29 conhost.exe 17->29         started        31 conhost.exe 19->31         started        process9 dnsIp10 61 Self deletion via cmd delete 23->61 63 Modifies the context of a thread in another process (thread injection) 23->63 65 Maps a DLL or memory area into another process 23->65 67 Tries to detect virtualization through RDTSC time measurements 23->67 33 cmd.exe 1 23->33         started        47 www.covid19voi.com 118.27.122.219, 49773, 80 INTERQGMOInternetIncJP Japan 26->47 49 9tv-cname.com 23.225.30.43, 49787, 80 CNSERVERSUS United States 26->49 51 6 other IPs or domains 26->51 69 System process connects to network (likely due to code injection or exploit) 26->69 71 Performs DNS queries to domains with low reputation 26->71 signatures11 process12 process13 35 conhost.exe 33->35         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-16 21:36:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
33 of 43 (76.74%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2yq2ykytpmroeygvd5dr5aanfcu7nl766fuuw3jk2psfqfjgvija._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ecba366860a44b8d6e0fa4e238d02ca9728e77a2ecd6ddda25a29c8c1a9cabf
Formbook
3802c17da19f4b86af70916d72948d6a73d6c388efdbae0598fdefc0ea0a5741
Formbook
589713496bc1f527bbccff193646a94b310124f01cd15b36f633a8b7d6686fb3
Formbook
8d38be02ab71fba9115c3a645edf515c62ffe53a5a590f7b37f362ab117473a1
Formbook
9e2502b3945f31482623e8e61dcb85b9ebb7d9a4244d9074fa289596c9da513e
Formbook
a2350a5de6de03952d1a75a6135bc92690500e13854d481338bb07aa011bfcd5
Formbook
b4d5b93e0fcadfdffbaa261a8992cf3c5f9d5f4f49cebe85963b09d2bbaa225c
Formbook
d00c073d20fa9d33eb8326798f0853be03a7f13e33bae3ce4c25c44bf25040f4
Formbook
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f
Formbook
ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126
Formbook
+ 11'622 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:s6ap loader persistence rat suricata
Link:
https://tria.ge/reports/220120-m71jyshfhk/
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Sets service image path in registry
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
3c1ba9de0677c2858a31b1c6fb76c62057fafea71b8a9c2ff590dc6b613042bc
MD5 hash:
1b366eb9312ece4f18476025575da330
SHA1 hash:
df395ed641c3c1af1e67ec8988c0784052cd40ac
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8562ee43-2996-4a20-93fa-b76aaf95fcd8/
Parent samples :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 hash:
075d5c167af13baaf23635f25d2d566c165e5c062fae0ddddb9219939a0bbc3c
MD5 hash:
679ef808e860bcc8b28fd5bf8f427cc2
SHA1 hash:
ae5f531349225dc14d5e596293d0020e3eab8b31
Link:
https://www.unpac.me/results/8562ee43-2996-4a20-93fa-b76aaf95fcd8/
SH256 hash:
c295b072d613be44fabdf2a2bf1c319b9f80bb360c0659e6448e311152f83aad
MD5 hash:
e042bd6b2268da5f64be247b79d7e1d1
SHA1 hash:
680681796208b28479672ca3ff73d019c8f04412
Link:
https://www.unpac.me/results/8562ee43-2996-4a20-93fa-b76aaf95fcd8/
SH256 hash:
d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12
MD5 hash:
1ddf5f1911be0eef1b4fb3fa34b9d1e8
SHA1 hash:
43dc1293b6f92d3d34abd2a9419ac861222c6a73
Link:
https://www.unpac.me/results/8562ee43-2996-4a20-93fa-b76aaf95fcd8/
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/d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12

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.

Malspam

Formbook

Executable exe d621ac2b137b22e260d51f471e800d28a9f6affef1694b6d2ad3e4581526aa12

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221064/

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