MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8
SHA3-384 hash: 8843af32f743fd1170a70206eb996840019c91a5a1f844e3a457d13c69e8529046f749d7cc2453ef465f14f06f0ec2b2
SHA1 hash: ba2024adf47835d2898106474763f2b859035f43
MD5 hash: 541f7d57efd07f60700cf6e7662353f4
humanhash: indigo-social-muppet-monkey
File name:541f7d57efd07f60700cf6e7662353f4.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:836'096 bytes
First seen:2021-01-12 07:10:21 UTC
Last seen:2021-01-12 08:54:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:CqDk5usVBDAUH/MNF7elL+H/Rc6If2RTND/qyxKoFB3K7SwyS:rDkeUfhZg/RcS1/qyTBIy
TLSH C905BF0021786FB2EA3C97F92645621983F5375F08EDE7744CD270E721B9F865A90ACB
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
541f7d57efd07f60700cf6e7662353f4.exe
Verdict:
Suspicious activity
Analysis date:
2021-01-12 07:14:21 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a6e255d0-ff2c-469a-bb41-a54d9e3a001f

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/111399/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.20358.27163.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
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/578690
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338397 Sample: zz4osC4FRa.exe Startdate: 12/01/2021 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 10 zz4osC4FRa.exe 3 2->10         started        process3 file4 31 C:\Users\user\AppData\...\zz4osC4FRa.exe.log, ASCII 10->31 dropped 59 Tries to detect virtualization through RDTSC time measurements 10->59 61 Injects a PE file into a foreign processes 10->61 14 zz4osC4FRa.exe 10->14         started        17 zz4osC4FRa.exe 10->17         started        signatures5 process6 signatures7 63 Modifies the context of a thread in another process (thread injection) 14->63 65 Maps a DLL or memory area into another process 14->65 67 Sample uses process hollowing technique 14->67 69 Queues an APC in another process (thread injection) 14->69 19 explorer.exe 14->19 injected process8 dnsIp9 33 www.tueddur.com 91.195.241.137, 49749, 49758, 80 SEDO-ASDE Germany 19->33 35 www.freshmarketfood.com 154.216.110.171, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 19->35 37 11 other IPs or domains 19->37 51 System process connects to network (likely due to code injection or exploit) 19->51 23 netsh.exe 12 19->23         started        signatures10 process11 dnsIp12 39 www.loimtech.com 23->39 41 192.168.2.1 unknown unknown 23->41 53 Modifies the context of a thread in another process (thread injection) 23->53 55 Maps a DLL or memory area into another process 23->55 57 Tries to detect virtualization through RDTSC time measurements 23->57 27 cmd.exe 1 23->27         started        signatures13 process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 03:01:18 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=imsa6hp332kkb62drmuv43o3h322uxxyf5bceiys6lvutoi7txua._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210112-ggp1mbkkrj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.classifoods.com/oean/
Unpacked files
SH256 hash:
43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8
MD5 hash:
541f7d57efd07f60700cf6e7662353f4
SHA1 hash:
ba2024adf47835d2898106474763f2b859035f43
Link:
https://www.unpac.me/results/bc91ae8c-736a-4d02-9e46-1af95e5097e1/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/bc91ae8c-736a-4d02-9e46-1af95e5097e1/
SH256 hash:
8291633eab52ca48397a460dba8c21d669e6c7575287d0bf76e276d5808e09b7
MD5 hash:
8cfcf82e7ba9efa1444090a9344ec868
SHA1 hash:
68fabdc98a43293d254085bed59dbe1e7912a4cd
Link:
https://www.unpac.me/results/bc91ae8c-736a-4d02-9e46-1af95e5097e1/
SH256 hash:
9150693ac3c1398300577d323097e0fbffd9624986c07ad77657a848bdb58221
MD5 hash:
668d780b83ab14a278561d4abdd2339c
SHA1 hash:
89b92401e32fb4f0fc943c24f6512f028883034a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bc91ae8c-736a-4d02-9e46-1af95e5097e1/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 43240f1dfbde94a0fb438b295e6ddb3ef5aa5ef82f42222312f2eb49b91f9de8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/952192/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/111399/

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