MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1. 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 2 File information Comments
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SHA256 hash: 4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1
SHA3-384 hash: a52f2f3bfe2b3363b3aea6cabf02873b6d474c7ba8e030fff637080546a394b5c7eb383b3139153d51c241dc28b7fa38
SHA1 hash: 0a25f386e4fd853f9791ad9f0d125eecff829a51
MD5 hash: 6fad67e8ccb7a292b055f43e47bb630d
humanhash: maine-fish-montana-april
File name:6fad67e8ccb7a292b055f43e47bb630d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:544'768 bytes
First seen:2022-01-13 15:53:25 UTC
Last seen:2022-01-13 18:21:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:fEHkAWNDGOtfqszAQPXoPbvdI7YESGhh+NBHdPSpvmxLms4qpPSpDY:8ExEOtS9q4PzdI7YVQEZ
Threatray 12'740 similar samples on MalwareBazaar
TLSH T162C4AEAC369075DFC82BCA368E641C50EA217C67570BD217A053329D9A5EAD7CF206F3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
224
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6fad67e8ccb7a292b055f43e47bb630d.exe
Verdict:
Malicious activity
Analysis date:
2022-01-13 15:54:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8d1fc8ff-6a6a-4943-aefa-5f43e6420b69

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/219080/
Detection(s):
SecuriteInfo.com.Trojan.Siggen9.48175.28914.22506.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/61e04b2ff2e8ec86fef88708/reports/dbe5ed91-eb0c-472e-9eef-94cebe297e42/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/76af0f9c-28ea-4f71-aa83-71e6cfb8883a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/920244
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 552725 Sample: d87YmU3js3.exe Startdate: 13/01/2022 Architecture: WINDOWS Score: 100 33 www.hstolchsjybyl.com 2->33 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 8 other signatures 2->51 10 d87YmU3js3.exe 3 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\d87YmU3js3.exe.log, ASCII 10->31 dropped 53 Tries to detect virtualization through RDTSC time measurements 10->53 55 Injects a PE file into a foreign processes 10->55 14 d87YmU3js3.exe 10->14         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 cscript.exe 14->17         started        20 explorer.exe 14->20 injected process9 signatures10 37 Self deletion via cmd delete 17->37 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 22 explorer.exe 2 147 17->22         started        25 cmd.exe 1 17->25         started        27 autochk.exe 20->27         started        process11 dnsIp12 35 192.168.2.1 unknown unknown 22->35 29 conhost.exe 25->29         started        process13
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-13 15:54:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f
Formbook
2ed8aeaf73ee1a3caf7eb0be7814868c4100efbe1b021e2d964db3b638dc7f3c
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
57a68c7a430cad458e15cea14ecde4f27f4d2fc3384cc4440fbd5fe16d967e4f
Formbook
59193ea2bc603f875f795f48d8c2711ad6e4321853e881691f180192e6f29f77
Formbook
95e46ac69b189a47167d193f4d43756f9cf965deba4ae6608ea20115209090e2
Formbook
ae371c388cd7f047ae61f852158fc5de2c7f5ab2bdda4b211b9fd87c7b6272dc
Formbook
afb0dcb294330abe26a2e2611f36441607a878844a251bea8be3e9407e238ad8
Formbook
eb75ee1b5895c0cc2882a850fab0f379ca09653d92a3a7ff8569593125622355
Formbook
ec575e5cdf3da323c27e65f3042586173ca50ba0682b733a61f0b47f80c3004e
Formbook
+ 12'730 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a83r rat spyware stealer trojan
Link:
https://tria.ge/reports/220113-tcbexabcc6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
d6981c1972362906d7a54e90b490933e57c4658b604f0127572ce22226653ed7
MD5 hash:
5bd70ea9f1494a448dcc7f93d6e25b4c
SHA1 hash:
bb04b7e5b4398e1cd67f9dc9928bcc3bc2270d8c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9ce3493a-50a6-4bad-9fe5-4ea4f65481d5/
Parent samples :
ae371c388cd7f047ae61f852158fc5de2c7f5ab2bdda4b211b9fd87c7b6272dc
59193ea2bc603f875f795f48d8c2711ad6e4321853e881691f180192e6f29f77
eb75ee1b5895c0cc2882a850fab0f379ca09653d92a3a7ff8569593125622355
57a68c7a430cad458e15cea14ecde4f27f4d2fc3384cc4440fbd5fe16d967e4f
3dceeaa794d1b8b67ba67c57820ba13f8078801c589747426b0562b5ebf411ca
95e46ac69b189a47167d193f4d43756f9cf965deba4ae6608ea20115209090e2
4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1
5bd07db2eed6c7e67e3f3947b5336c6ba986cfbd03bd406c13eda1999a64fc70
945cc074b259187bf0d90e4bc1c29a5ba7983a293eda5569267c7d83af7cb555
1e144fefc15a6a2643674f01b3324e29b5320d45a16a081e8aad8a969712cb9d
SH256 hash:
1102d76935981cede43a9b30cd969917b4497105d110107916f1fe561eae91a7
MD5 hash:
25d823ece88c612e86a8369b0c2aadc4
SHA1 hash:
7db8f463fc7a4e2d4a1850b5e1ff17983679fa89
Link:
https://www.unpac.me/results/9ce3493a-50a6-4bad-9fe5-4ea4f65481d5/
SH256 hash:
d773132ee4c9d9ae304343c77faffd9c93c9112b02c9bab96c9e082f198774e4
MD5 hash:
9448165a66fa5f2dc8deeffecff4ebcd
SHA1 hash:
31b61a8e87ac02afa84a34694f5093d8e6f12d92
Link:
https://www.unpac.me/results/9ce3493a-50a6-4bad-9fe5-4ea4f65481d5/
SH256 hash:
4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1
MD5 hash:
6fad67e8ccb7a292b055f43e47bb630d
SHA1 hash:
0a25f386e4fd853f9791ad9f0d125eecff829a51
Link:
https://www.unpac.me/results/9ce3493a-50a6-4bad-9fe5-4ea4f65481d5/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4726f7e6956e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1

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.

Web download

Formbook

Executable exe 4726f7e6956e313b3f98da2e40bfc923b6aa6f5033e90962ed10497cc5957ee1

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/219080/
  
URLhaus
https://urlhaus.abuse.ch/url/1901647/
  
Delivery method
Distributed via web download

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