MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50fb163dd8e037bd8380f0704f7163161e2a1b292d5726c18ebe1b47a5c3c7c0. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 50fb163dd8e037bd8380f0704f7163161e2a1b292d5726c18ebe1b47a5c3c7c0
SHA3-384 hash: ead699d4fd9df1d5b4dea0b0b0876dfcc56d5967ef1ea23ac6f533416807b29aee37368be229db72465e144c9bb9eb34
SHA1 hash: 7e80d7c325ef6b1920ee3359f6deece572f0175b
MD5 hash: 71e9940228c0c26a2f46a5bfcc92bea8
humanhash: delta-six-nine-august
File name:Копија рачуна одобрена 5.25.21.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:577'024 bytes
First seen:2021-05-27 09:11:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:aFRGgBT1SIE8lVQUJwJBt+6S1Z4vHfwkqMTqWSULfD0X0FwRjPBciuFlcjt3s2Hs:gRGgBT1SiVxKSjWqomjJcFicQQL1CpE/
Threatray 5'457 similar samples on MalwareBazaar
TLSH 3BC4AC2231695C93C43906F40026AA81F3F16E66785EE7C81ED3A3EE1ED8BC15B47677
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Копија рачуна одобрена 5.25.21.exe
Verdict:
Malicious activity
Analysis date:
2021-05-27 09:12:54 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f720a042-ffa5-4cd0-8260-a6c2b0be7037

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/162663/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
DNS request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/793097
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 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 signatures2 2 Behavior Graph ID: 425493 Sample: 5.25.21.exe Startdate: 27/05/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 7 other signatures 2->46 10 5.25.21.exe 3 2->10         started        process3 file4 32 C:\Users\user\AppData\...\5.25.21.exe.log, ASCII 10->32 dropped 58 Injects a PE file into a foreign processes 10->58 14 5.25.21.exe 10->14         started        17 5.25.21.exe 10->17         started        19 5.25.21.exe 10->19         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected process8 dnsIp9 34 www.91jpjob.net 69.197.162.75, 49762, 80 WIIUS United States 21->34 36 www.abirepeh.com 199.34.228.69, 49767, 80 WEEBLYUS United States 21->36 38 7 other IPs or domains 21->38 48 System process connects to network (likely due to code injection or exploit) 21->48 50 Performs DNS queries to domains with low reputation 21->50 25 WWAHost.exe 21->25         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 25->52 54 Maps a DLL or memory area into another process 25->54 56 Tries to detect virtualization through RDTSC time measurements 25->56 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/50fb163dd8e037bd8380f0704f7163161e2a1b292d5726c18ebe1b47a5c3c7c0/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-05-25 12:19:37 UTC
AV detection:
26 of 47 (55.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kd5rmpoy4a333a4a6bye64ldcypcugzjfvlsnqmoxynupjody7aa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
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Formbook
4d802d9e6ca2715f9181c8a3314dee02ef95901049bdc955e1b0a66eee2186d4
Formbook
5101663e1850401504dd1e56231725be9a3001ed01e99fa88d348b9511c52f4d
Formbook
561562923f5bb53f6113b9a15c60cf2755437556e9e48cdc3fc3ae7ebe0171a7
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7531be8656ccc4c8d8cfac7b13b06f3ed9b533274c71f393712ab1c9b81716fc
Formbook
9b70fcd07ba7d3dcef17f3b28cf75e304840a67e8611dc149744215f8483066d
Formbook
a18c72dd002da72c81258cf4e85a7a013233d16556472d78cd84d984e74edd6b
Formbook
b1fbc6ceb27ff1142228b55cfc493da29609dcaf9660ce70af8e574beecfd560
Formbook
b5e2b52a984579c7f0aa92d0acaa6eef67f06af5330857ba98a62345edd59908
Formbook
fb2b5f7805523f8e675cf06f611c9429e657f4f0af111bf4959627e6183ddc48
Formbook
+ 5'447 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210527-vmext9eaca/
Behaviour
Enumerates system info in registry
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
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.sistershantex.com/u2ni/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/50fb163dd8e037bd8380f0704f7163161e2a1b292d5726c18ebe1b47a5c3c7c0

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 50fb163dd8e037bd8380f0704f7163161e2a1b292d5726c18ebe1b47a5c3c7c0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/162663/

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