MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee
SHA3-384 hash: b15b86d14f34fd667cc3580a97a305fce36df8cb9b83acf4b40a3f24450f0d1f04a2f5ada2c13ecdc38631a81c2d7d76
SHA1 hash: 1e31cb564e3d17f9111bd4f9820c4610d21bb5ce
MD5 hash: c32025bcdb5f395414464705c115577d
humanhash: crazy-mars-kilo-item
File name:c32025bcdb5f395414464705c115577d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'443'840 bytes
First seen:2021-07-06 16:21:25 UTC
Last seen:2021-07-06 17:17:39 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 24576:jiOOQh06aSbqt5s2345ReK1ahEaP7npb:jsw06fms9egW7np
Threatray 6'389 similar samples on MalwareBazaar
TLSH CE659D3576729F91D87FC7384331E13C4FB8AE66E217E6B56CD8389B64B0B400A56623
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c32025bcdb5f395414464705c115577d.exe
Verdict:
Suspicious activity
Analysis date:
2021-07-06 16:31:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f594f67b-6261-41b3-9b49-a7d30b27beaa

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/170051/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.27013.32217.20700.UNOFFICIAL
Create hunting rule

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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/15db95c8-f9c8-40fa-92c5-0da992a9ffaa
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/812429
Signature
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 444841 Sample: BJw9rzkYXT.exe Startdate: 06/07/2021 Architecture: WINDOWS Score: 100 33 www.woodburybankruptcylawyer.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 4 other signatures 2->47 11 BJw9rzkYXT.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\BJw9rzkYXT.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 BJw9rzkYXT.exe 11->15         started        18 BJw9rzkYXT.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.kazzory.com 66.96.162.146, 49768, 80 BIZLAND-SDUS United States 20->35 37 amarresamorusa.com 107.180.11.232, 49769, 80 AS-26496-GO-DADDY-COM-LLCUS United States 20->37 39 5 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 24 help.exe 20->24         started        signatures11 process12 signatures13 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:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-06 16:22:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
56
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ukxpsvfml5e3w7arawnyru4dvybkfnpevtcxrths7lzamwq2pxa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1432f0240c91b7439722df807e35ef9b4cc9b126f3e5d42cedb27b28751118d7
Formbook
14854d1ce96dcc9795941ec7248f8d2481d5649cdeecaccbfe840f259bc50bde
Formbook
22ae731061f7359c7467be0f7a710013516ed356a79b2e23adec7c57a12624a2
Formbook
59ced73cabf35385aaedb67d1b0cd813cc16f5f8e056add78cf50f3abc28351a
Formbook
63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665
Formbook
9001d75f0d0b09af013fc65992e74d4b568d166ca5837f1bf52316173b3f30d2
Formbook
9cf07e6cbf0321dc63141d5d14b6df920c9c90ee178636def703946324fec78b
Formbook
bd6055810a703f4f0caec388c7cce89661ee9451179dc3abe6261480bda4105e
Formbook
da9e3cdd0874cc1e8fcd3ed354cfb48d39f0b2ec7b0b4334ea85d7da7aa32f7c
Formbook
f5a2547fc06aeb5416ee308668f2091e0e21c07b57aa6f4e5db47e06e6899a73
Formbook
+ 6'379 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210706-t4dzvqf9xn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.wholeitaly.com/gno4/
Unpacked files
SH256 hash:
08e7ff1fbbc539cd5af5729d33eb92c22cf96399d22391dc226c43327e2ee3fc
MD5 hash:
5a53e47e6601953171d1014c9e412b2a
SHA1 hash:
3b21cbac68a3d408000705de4546acf1adee2253
Link:
https://www.unpac.me/results/405aa915-5277-4a1d-a153-da1eddfb2ba6/
SH256 hash:
5209992fd1f96cd1959efb5e1afa71f5c9ae2ab4430e258fe9d0ec915098d110
MD5 hash:
257ca10e5cbb2f8bdf0ae6f3e900e11e
SHA1 hash:
9d25ee80dbe3bbce5ab4479912c5e21b19b6aeec
Link:
https://www.unpac.me/results/405aa915-5277-4a1d-a153-da1eddfb2ba6/
SH256 hash:
2c39fff924847f6c4db3b18a6ee3aa83515dbcd5081d2ce5e35c2fd13dfc2c35
MD5 hash:
d2939ab2a0f805b34562c150759602cb
SHA1 hash:
63858361bbb11cba4446d62a15458c09b56746c3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/405aa915-5277-4a1d-a153-da1eddfb2ba6/
Parent samples :
f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee
7b30aa9e1a8c042a0aeabf69e60854f650c2c8ba016f732d5fe44ac80e250fc0
a273d1b904ea821a804171f679decc9ab254848d9b68cfa0b6b87886784a0791
SH256 hash:
f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee
MD5 hash:
c32025bcdb5f395414464705c115577d
SHA1 hash:
1e31cb564e3d17f9111bd4f9820c4610d21bb5ce
Link:
https://www.unpac.me/results/405aa915-5277-4a1d-a153-da1eddfb2ba6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee

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: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 f51577caa562fa4ddbe0882cdc469c1d701515af25662bc66797d79032d0d3ee

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1431201/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/170051/

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