MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0. 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
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SHA256 hash: 45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0
SHA3-384 hash: 06fabe18bb1c88f5ad84b04c69a3a5a9fc1a3166b9081a327d7e9d1945467cf84dbdc5297e4b47ae0993af34d412c58c
SHA1 hash: 76cb2ab21a6009275ba3dcbe256a15a211833f35
MD5 hash: cd9435966d20de265bc5f6f40daff4a3
humanhash: yankee-montana-network-sierra
File name:Enquiry Reference Number 0025559278.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:761'856 bytes
First seen:2021-11-08 19:13:56 UTC
Last seen:2021-11-09 12:55:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:hw9J+nMmYSmrv1UAjMA2VAmCnrPh5BhvnYjp5wylG:q9J+MmWz1nOqmy7h5BhvnYjp5wylG
TLSH T129F44C099BD44D19C37E02705429A06CED514E7B663DC258BF8E36AF3B7BA10866373B
Reporter TeamDreier
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:
Enquiry Reference Number 0025559278.zip
Verdict:
Malicious activity
Analysis date:
2021-11-08 07:00:21 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/bd73da7c-4932-4b24-ba82-57ed63b1daa7

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/203359/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.11534.30349.UNOFFICIAL
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Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61897700dec33478259fd480/reports/94968c4a-fb71-412d-852b-201d4c169b74/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1bd12ad0-3cf6-458a-b946-2dcb3667d114
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/885002
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found detection on Joe Sandbox Cloud Basic with higher score
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
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: 517460 Sample: Enquiry Reference Number 00... Startdate: 08/11/2021 Architecture: WINDOWS Score: 100 29 www.adaptationstudios.com 2->29 31 HDRedirect-LB7-5a03e1c2772e1c9c.elb.us-east-1.amazonaws.com 2->31 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 10 Enquiry Reference Number 0025559278.exe 3 2->10         started        signatures3 process4 file5 27 Enquiry Reference ... 0025559278.exe.log, ASCII 10->27 dropped 57 Injects a PE file into a foreign processes 10->57 14 Enquiry Reference Number 0025559278.exe 10->14         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 msdt.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 39 Self deletion via cmd delete 17->39 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Tries to detect virtualization through RDTSC time measurements 17->45 23 cmd.exe 1 17->23         started        33 www.kermmehienon.quest 37.123.118.150, 49806, 80 UK2NET-ASGB United Kingdom 20->33 35 fullfamilyclub.com 190.96.78.139, 49838, 80 TIVITCHILETERCERIZACIONDEPROCESOSSERVICIOSYTECNOLOGI Chile 20->35 37 10 other IPs or domains 20->37 47 System process connects to network (likely due to code injection or exploit) 20->47 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-08 06:37:54 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iv4q6hgdzm36z7sudga536osk2cnsjlwztvwxw4at42fafg6qtya._file
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:u0n0 loader rat suricata
Link:
https://tria.ge/reports/211108-xxngraaacm/
Behaviour
Gathers network information
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.52xjg3.xyz/u0n0/
Unpacked files
SH256 hash:
cf88d8c1809ccd5edf41631bec8cbb58a0b7f59ef0827164464888cb97e7f6f9
MD5 hash:
2cedecbbeaab2c98adafb3746b040421
SHA1 hash:
6fb38bf634702caff714f66b0a936b180cceb75c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d0aac1aa-62cf-44cd-af85-c7d88f3e006f/
Parent samples :
45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0
696ba6fed0994cac4e47993f336820499cd3faf3ce4713d4e0be0ea0d91748af
ea693b5bb0a73a3cb5547fc88b5fff6f5198997a2b7e33a386dd3a5f0788e8ba
ec967cb2eeeb76c7acaba88e1c3eb6f5fa39cedb54b4edbb17eb0087977d21ee
25e4adba5d0ef98cb4f2a30b964254c5189d687d8af747533fe380907f36173b
16afc1275bbb9dc325bcb03d7d0fb57b704adc0438c5c006070bdd07f2259230
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/d0aac1aa-62cf-44cd-af85-c7d88f3e006f/
SH256 hash:
fea5225734f5c15e956b6e70546e404839bd6578a3188ee6049b08ea489dede2
MD5 hash:
2c73d888b83f06b9a4e5cc8c58afa5d0
SHA1 hash:
25560b21004216492c338860ac2308a7fae5710b
Link:
https://www.unpac.me/results/d0aac1aa-62cf-44cd-af85-c7d88f3e006f/
SH256 hash:
45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0
MD5 hash:
cd9435966d20de265bc5f6f40daff4a3
SHA1 hash:
76cb2ab21a6009275ba3dcbe256a15a211833f35
Link:
https://www.unpac.me/results/d0aac1aa-62cf-44cd-af85-c7d88f3e006f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/45790f1cc3cb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 45790f1cc3cb37ecfe541981ddf9d25684d92576cceb6bdb809f345014de84f0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/203359/

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