MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591. 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 2 File information Comments
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SHA256 hash: 57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591
SHA3-384 hash: 53d17253ee74734993f2b4e36c4799ac50cf93a02152ef0c91ffd97ed3198e3011bbc8ee42f3dcdaaeeb909afc668148
SHA1 hash: b0476399175e653a8afdd590927dea5e92d0c760
MD5 hash: a0fd0dcfb5af60c3e834b2d61e7b9b6f
humanhash: eleven-april-timing-hotel
File name:Enquiry 1331 SO 26929.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:648'704 bytes
First seen:2022-05-11 05:39:36 UTC
Last seen:2022-05-11 06:42:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:04u9WxhTdhhTMmoSG8V7wqzlNrcVSD15QazZDs7:Xu9W3T9TVoSxmqsVy1RZw
Threatray 15'394 similar samples on MalwareBazaar
TLSH T19FD4010177B49F6AC83C07F86925895247B17C26DA22EB4F5ECAB2FF0873B414A11E57
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269605/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.331.25251.4693.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed replace.exe wacatac
Link:
https://www.filescan.io/uploads/627b4c4bbe0219041a918714/reports/9dbf2513-3896-4955-88ee-d8c14eb37a49/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/96b91b8d-bc4e-4f02-bbec-fd4dbb5234d3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/991617
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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 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
Snort IDS alert for network traffic
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 netsh to modify the Windows network and firewall settings
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: 624113 Sample: Enquiry 1331 SO 26929.exe Startdate: 11/05/2022 Architecture: WINDOWS Score: 100 49 www.sapsah.sbs 2->49 51 www.resenhadigital.com 2->51 53 7 other IPs or domains 2->53 67 Snort IDS alert for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 14 other signatures 2->73 11 Enquiry 1331 SO 26929.exe 7 2->11         started        signatures3 process4 file5 41 C:\Users\user\AppData\...\KTqbfiCBabjdVm.exe, PE32 11->41 dropped 43 C:\...\KTqbfiCBabjdVm.exe:Zone.Identifier, ASCII 11->43 dropped 45 C:\Users\user\AppData\Local\...\tmp5795.tmp, XML 11->45 dropped 47 C:\Users\...nquiry 1331 SO 26929.exe.log, ASCII 11->47 dropped 79 Adds a directory exclusion to Windows Defender 11->79 15 RegSvcs.exe 11->15         started        18 powershell.exe 25 11->18         started        20 powershell.exe 24 11->20         started        22 schtasks.exe 1 11->22         started        signatures6 process7 signatures8 81 Modifies the context of a thread in another process (thread injection) 15->81 83 Maps a DLL or memory area into another process 15->83 85 Sample uses process hollowing technique 15->85 87 2 other signatures 15->87 24 explorer.exe 15->24 injected 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        process9 dnsIp10 55 www.headveins.com 103.224.182.246, 49814, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 24->55 57 owensarwatkafoundation.com 15.197.142.173, 49791, 80 TANDEMUS United States 24->57 59 2 other IPs or domains 24->59 75 System process connects to network (likely due to code injection or exploit) 24->75 77 Uses netsh to modify the Windows network and firewall settings 24->77 34 netsh.exe 24->34         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 34->61 63 Maps a DLL or memory area into another process 34->63 65 Tries to detect virtualization through RDTSC time measurements 34->65 37 cmd.exe 34->37         started        process14 process15 39 conhost.exe 37->39         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591/
Threat name:
ByteCode-MSIL.Trojan.LokiBot
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Status:
Malicious
First seen:
2022-05-10 21:11:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k6rvlhdk762sac7fjm6aain3aso5gmdkwdrsnak3kvoflm474wiq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
002ea0849da3c63ce6c09c084567e9470c3616084ef19402316e9d52f35c62a7
Formbook
3cc9b252ff025191c7ca6413ec68089630073126ae82ee276acec334903a07c2
Formbook
46956dd9cd5e3f62c79127e5e8bcd3b420695a0112df256aa07364bc6a32e697
Formbook
4ae196ba20257faedeeb359b17525e17cd4eff1b25eb171ca7c2a93ea3cd526c
Formbook
513624286483a4e172511b412b82445a06eefc904d54de75da656ec1a6f8ae99
Formbook
bdf8f0fe0af3da8a08f2d5ba8baeec69b75565cf09fb160d58297b6b33a956b6
Formbook
d7dc569e0cf8cc6afc0a4a922263195ea12051b1db428fcf9fba724d90261a5e
Formbook
fed1f0c660904ecb7465c29594741e048485c6bdd792f8b745e9f12a9b40367f
Formbook
+ 15'384 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:oyn5 loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220511-gcvsbsaefq/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
29f02420553dfdda816a2f3df1a646b90104914d48178b933d8df5ed97ce28a9
MD5 hash:
8e0136ba4d6d927ea9c1ff596ebd49d5
SHA1 hash:
5d634fce984df159a872aba8c621c1474e77fc6e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
SH256 hash:
9733423b2797d5e1ffc16fc5c1df522b709ad6ba25714021456441fe7bdd7ae8
MD5 hash:
7322ae66dce19df036432b5d6afe9297
SHA1 hash:
ef7a7cac65857c565482b6e09f6740efd14564ab
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
SH256 hash:
0569eb613fe26a9dd86259cec9ec99d26fa86a90957ba83a63d1ca3298f3c3bf
MD5 hash:
1c40149b05818b11ff1fd8b5709dd0d5
SHA1 hash:
8c93cc8ba1b11950691b4ad4bb3c15c9959f741e
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
SH256 hash:
70a56de93f8b92e4e0eebfa2ba2f330751416f9fb65cb1eeddc8d4d75c597097
MD5 hash:
ddccaba6afc01363aa629dd34379277e
SHA1 hash:
148c8a218bead87004c281dcf39715914b5ca1a1
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
SH256 hash:
d28208f29b4220024b45925b9db5e966714b3c8653159e414eeea8b7e07cdafd
MD5 hash:
1a5a85203ae08f597ffc16a29dbbc084
SHA1 hash:
b4d0f44e3ddedcb16aff78df3fbe2c154ba8677f
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
SH256 hash:
57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591
MD5 hash:
a0fd0dcfb5af60c3e834b2d61e7b9b6f
SHA1 hash:
b0476399175e653a8afdd590927dea5e92d0c760
Link:
https://www.unpac.me/results/db67805f-0489-4278-8680-4409a78c0f15/
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/57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591

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
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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 57a3559c6affb5200be54b3c0021bb049dd3306ab0e326815b555c55b39fe591

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/269605/

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