MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2. 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 3 File information Comments
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SHA256 hash: a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2
SHA3-384 hash: 0b39f6aa5d1d10da85789286e3f53b75d3ea447f2b7109f3bdbf0bb02ac10432434ecab0b8401fa83369bcdee4ad39cc
SHA1 hash: 71934c5b58caabe508d052323720a0c74c57d6fc
MD5 hash: cd1801462694799d05d2eca33097b1bd
humanhash: fix-uniform-kentucky-early
File name:Scan_PO021522.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:77'312 bytes
First seen:2022-02-15 12:04:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:dqH/YeMBxuA3J7W0UZilZq4KCm+ApH1ThO/FZ:dqfYEI76ZilZq4O+wi
Threatray 13'368 similar samples on MalwareBazaar
TLSH T13B73A7C6FA0095B4EC2A97712A36DD3116037C7E95B42A2C3DCE3E7B3EBB4629411853
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
208
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/241601/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Сreating synchronization primitives
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/620b96f2875593a3cccfdba1/reports/2eb07b45-7c44-4c5c-bf22-cd6adba207be/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/52e73bca-ee24-4733-b461-1f1af41b75f3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/940053
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 572531 Sample: Scan_PO021522.exe Startdate: 15/02/2022 Architecture: WINDOWS Score: 100 34 www.gelsinpremium.com 2->34 36 gelsinpremium.com 2->36 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 7 other signatures 2->58 11 Scan_PO021522.exe 15 4 2->11         started        signatures3 process4 dnsIp5 38 www.lexneuquen.com 11->38 40 google.com 172.217.168.14 GOOGLEUS United States 11->40 42 3 other IPs or domains 11->42 32 C:\Users\user\...\Scan_PO021522.exe.log, ASCII 11->32 dropped 66 Tries to detect virtualization through RDTSC time measurements 11->66 68 Injects a PE file into a foreign processes 11->68 16 Scan_PO021522.exe 11->16         started        19 conhost.exe 11->19         started        21 Scan_PO021522.exe 11->21         started        file6 signatures7 process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 16->44 46 Maps a DLL or memory area into another process 16->46 48 Sample uses process hollowing technique 16->48 50 Queues an APC in another process (thread injection) 16->50 23 explorer.exe 16->23 injected process10 process11 25 msiexec.exe 23->25         started        signatures12 60 Self deletion via cmd delete 25->60 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-15 12:05:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ubey3lkgs4mert33fppaed3kyhhixwcqrkxzecrgcyddbgfm23ja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
29d23710bef2e9821a27d4d0a74305d582ba41d206d3b48b6762e4f3d78b19ba
Formbook
5dde67093b891df286e998912557fa598ebebc662bb30252fbe9ce7798e50242
Formbook
79215526b0229696bf3961e09918bca444cb43b079ca70834c54db52c49c51ac
Formbook
7cbd8cc35b03d65491ad01b6a44b84dc047e6663189554201c24dbfbeb81473c
Formbook
9767d52eebfbf17f2e549a57d68d7f11c199af327eeb20542b39485f883f61e1
Formbook
b7cf8d9d8db4c5eaf796d35251bfc2b24f34c2c77d2ca82a1ebf470323c0894f
Formbook
b972dfd3f5fd6142b67366d223c0056b75d3d93538a7c05ce35e27ad1c9541ed
Formbook
+ 13'358 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:dgrg loader rat suricata
Link:
https://tria.ge/reports/220215-n87kbsfhek/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2
MD5 hash:
cd1801462694799d05d2eca33097b1bd
SHA1 hash:
71934c5b58caabe508d052323720a0c74c57d6fc
Link:
https://www.unpac.me/results/76a7259a-e110-4d00-8a41-4edf8f950bab/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a0498dad4697/report/overview.html
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/a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2

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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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 a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/241601/

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