MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8
SHA3-384 hash: ddf44c0b88a3bd62f76dbb60729cc3428dfe71c7b5c6ed7b03a793f352a3f0561ec60d9db1f470f5bccba0742a66eb64
SHA1 hash: 7f487cec253084ad4e8bf88a036f25eef8df4383
MD5 hash: a15f32098d89e911d22ea91bffb4dd7d
humanhash: mountain-potato-lamp-high
File name:obinnazx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'219'584 bytes
First seen:2021-11-16 11:13:01 UTC
Last seen:2021-11-16 12:36:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:6lAfkK7cAAERgi5FLjbWgfTH+tie9X26mycaiRO6:6Wfp4tERgi5FKo2iGXejY
Threatray 11'035 similar samples on MalwareBazaar
TLSH T14B454A023A85C911C1AA3237CCEF402447FCBD81AD9BEF2A79AA33BE556737608451DD
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Order_#001482.doc
Verdict:
Malicious activity
Analysis date:
2021-11-15 12:12:55 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/e1c42828-b8c0-41be-8416-d2478df1f33e

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/206373/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.42319.24929.25539.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
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619392574912a8c920a02539/reports/a4f539fa-4903-42c7-b890-36afdc9b77cd/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d6f10056-6181-4c88-a6bc-0f9b560e663a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/890298
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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)
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 dnsIp2 2 Behavior Graph ID: 522771 Sample: obinnazx.exe Startdate: 16/11/2021 Architecture: WINDOWS Score: 100 33 www.godsfavoriteshoes.com 2->33 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 7 other signatures 2->45 11 obinnazx.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\obinnazx.exe.log, ASCII 11->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 obinnazx.exe 11->15         started        18 obinnazx.exe 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.sunnylivingmiami.com 20->35 37 sunnylivingmiami.com 34.98.99.30, 49824, 80 GOOGLEUS United States 20->37 47 System process connects to network (likely due to code injection or exploit) 20->47 24 help.exe 20->24         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 24->49 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-15 13:17:09 UTC
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1ee20ec28c5649c69a2cab43e7f7e99d9f6c839cc5ae5ed2e279281682fe3b53
Formbook
24020c0cae5f243c30eaee1fa84e2bf8899f1acb80a16491b7dce179d1ffe6a4
Formbook
2c74b3cf30c4c89fcd341129917f850be3faf7f7f91646545e7d65106a30dfb0
Formbook
4bdd5968c006f979c68ba686942695680950574bba495136b26bdd166d537ede
Formbook
5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8
Formbook
c781169f80930851f2174df529d1aaba061c45fd7ef90c5059a7c513bfda3414
Formbook
cf8ab312ec2e263777fd777cdc2f714c18d259241bfeec9dbe6eb4ac62708f7f
Formbook
dd6dba0589aac8951a4ddc6bcbbbf76f478b1df4ef93e6f1df0bd789f560d32a
Formbook
e83ce530468ceacafc364791ce8de4cdc2b456cb0df25b93ac4055a99b031702
Formbook
+ 11'025 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ad6n rat spyware stealer trojan
Link:
https://tria.ge/reports/211116-nbes2sdea6/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.didimthebestkuafor.com/ad6n/
Unpacked files
SH256 hash:
def784268365dae11e6a6b197ec699791763566672fbcec5ee0e6ab084b0ea5d
MD5 hash:
9b08e9c56068008f5893fd4f7b6bf573
SHA1 hash:
8c88a1c68455d6f7be3d275bd9ac8f4fd2a09bde
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8ce170ca-efec-4b03-8a06-b187b82f8470/
Parent samples :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 hash:
a820cce558daab3b269c54174c16fd1f4e1cb517b5a338ee67eb36b835ef42a0
MD5 hash:
b646c4a6e290be619132786ea84d3e06
SHA1 hash:
e9ae167de0f8b7be6417433bfc01eadf82c09ea8
Link:
https://www.unpac.me/results/8ce170ca-efec-4b03-8a06-b187b82f8470/
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
Link:
https://www.unpac.me/results/8ce170ca-efec-4b03-8a06-b187b82f8470/
SH256 hash:
d141b68ffde6932b0fa736ba0c92d707b924b79c43a0a632c9291487fc3bb588
MD5 hash:
18b0f32c28cbe1b02fd231ba707b625d
SHA1 hash:
4269c3e90a00cf36a82eeb73be726e0934e72216
Link:
https://www.unpac.me/results/8ce170ca-efec-4b03-8a06-b187b82f8470/
SH256 hash:
afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8
MD5 hash:
a15f32098d89e911d22ea91bffb4dd7d
SHA1 hash:
7f487cec253084ad4e8bf88a036f25eef8df4383
Link:
https://www.unpac.me/results/8ce170ca-efec-4b03-8a06-b187b82f8470/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/afa8139ef1e6/report/overview.html
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/afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8

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: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.

Web download

Formbook

Executable exe afa8139ef1e6cbc28ac8aa89dbd9fc2d2922724eb5749e1eed1a80c4f9813ea8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1777214/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/206373/

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