MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d. 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 3 File information Comments 1
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SHA256 hash: fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d
SHA3-384 hash: b8703c2d8ee8fe2a17e4357768e19e59b1c85ef85c72722b9cbcad125790744d56934dc6d17d681931042d2cb988c8d8
SHA1 hash: 2e6ba97b749be3d3eb742a03f8a6390fb684ad77
MD5 hash: c465f78b104d49976e2fda4921ceb312
humanhash: east-magazine-princess-cardinal
File name:c465f78b104d49976e2fda4921ceb312
Download: download sample
Signature Formbook
Create hunting rule
File size:915'968 bytes
First seen:2021-08-19 13:35:18 UTC
Last seen:2021-08-19 16:57:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:hI9yQsbmo3D4hT4x9Z4JezHb/ZvL3137P+bjLm0+v/0+M70C:Yo30h8xuA7/ZLFrP+/Ov/ZMw
Threatray 7'221 similar samples on MalwareBazaar
TLSH T1F415063D19B91637D1B5D365EBE18423F148985FB411AE6AACDE03A7030BA8735C723E
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
September Order.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-19 13:04:08 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/1f8a0163-4daf-4138-b090-5330f12292e8

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/180711/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.61964.16495.17864.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:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/189363b2-3962-476e-9974-3b777a77fae4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/835839
Signature
.NET source code contains very large strings
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 468268 Sample: HB61QyukJP Startdate: 19/08/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 7 other signatures 2->42 10 HB61QyukJP.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\HB61QyukJP.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 HB61QyukJP.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.terrasombrafarms.com 172.67.216.104, 49725, 80 CLOUDFLARENETUS United States 17->30 32 www.shipu199.com 17->32 34 shipu199.com 34.102.136.180, 49719, 80 GOOGLEUS United States 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cscript.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-19 13:36:11 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ndntm66owa4kukinlocv2ga2k4pylopaskgfz5iskmbvitfej6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
55580a7b5ec8510e0bf498f20928778b6c7b2071a31d8332f809a7a718c66b48
Formbook
81da76220fb0ae253e2cb1708b5b69da345ed3f69fca6d5bda7a0f59470196fe
Formbook
8898f85efa9e25992b6e00da2b7d3338649ebf89d26a92b9bf156618960f5466
Formbook
9f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
Formbook
c7779ddf9204c4f2ee97e301cfa35ed4c22222bd09299fd95f1eb999384009e0
Formbook
e759a4a906a9496f6b9f60b90e7ff49ef812090ce465108f08d32ac916e20cff
Formbook
f7f5dc4483ba1acdb1e2118ac855a9d4c0b7333749808a11ae69c6e345cdaf6f
Formbook
+ 7'211 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m3n0 rat spyware stealer trojan
Link:
https://tria.ge/reports/210819-6yhsecfnhx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.terrasombrafarms.com/m3n0/
Unpacked files
SH256 hash:
065a4e18b4dc958450c4570b2dc2114d87ba60e0d8d2059ce5067c2260555c62
MD5 hash:
88b590c562a0845d0cf6ddc27d5eeb6f
SHA1 hash:
3a0b7c08bf6ea72a5394dfe1736a3706ffa9f607
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/36c46a5f-1432-4846-999a-bb5bccbe7217/
Parent samples :
e759a4a906a9496f6b9f60b90e7ff49ef812090ce465108f08d32ac916e20cff
f7f5dc4483ba1acdb1e2118ac855a9d4c0b7333749808a11ae69c6e345cdaf6f
c7779ddf9204c4f2ee97e301cfa35ed4c22222bd09299fd95f1eb999384009e0
fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d
b91bc68553ee8ce92c9ab04875b8e21703aeb7c63d9f2fe67a73a940c8150d8d
9e69e22a336f4e2b17aa52eaa7183bdd92f17f577657c227f37419d38f42f920
205b063d9085337a5339cb50abc7cadf48a0ccefc6fd4e5c923751339cade6af
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/36c46a5f-1432-4846-999a-bb5bccbe7217/
SH256 hash:
9bf29fd424c48592a3d1613fbbf7cb4745c2a49c17d74a623250e8ad8aaafe86
MD5 hash:
8812275a6c1ff16eb467e21811c938ff
SHA1 hash:
417df8202a9c4e3be567416f0b47856082cf694a
Link:
https://www.unpac.me/results/36c46a5f-1432-4846-999a-bb5bccbe7217/
SH256 hash:
fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d
MD5 hash:
c465f78b104d49976e2fda4921ceb312
SHA1 hash:
2e6ba97b749be3d3eb742a03f8a6390fb684ad77
Link:
https://www.unpac.me/results/36c46a5f-1432-4846-999a-bb5bccbe7217/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d

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: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 fb46d9b3de7581c551486adc2ae8c0d2b8fc2dcf049462e7a892981aa265227d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1545985/
Cape
Cape
https://www.capesandbox.com/analysis/180711/

Comments


Avatar
zbet commented on 2021-08-19 13:35:19 UTC

url : hxxp://198.12.91.175/sgd/vbc.exe