MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c. 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 4 File information Comments
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SHA256 hash: e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c
SHA3-384 hash: ba39b0756a6f27a86ab1a5c12a8f763cfaf6be48d474fd42998bdcc5ff52445a3cee83c90aee922a2cafe12c4ab3d9d4
SHA1 hash: c5c12e46a31a37be2bc4cb7bd9b2f8d157fdd867
MD5 hash: 249d02485643ef7099f272687c05aab5
humanhash: timing-avocado-helium-monkey
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:266'080 bytes
First seen:2021-11-30 13:36:09 UTC
Last seen:2021-11-30 15:33:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGinNWTMoLKtdkxybKVfa8+kyREKwAmxsHVCyb:ATp2dkM2Aj
Threatray 12'022 similar samples on MalwareBazaar
TLSH T17B44124EA6C6CC27C29306705673DF3CF3F540E84461994B4BA46FAA7F225D3492670B
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
triage_dropped_file
Verdict:
Malicious activity
Analysis date:
2021-11-30 13:43:27 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/5ef9cbc0-d375-4cda-a80f-07eae15a9284

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/209938/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.1779.14224.24162.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
DNS request
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Sending an HTTP GET request
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  0/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/393/overview
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/61a62901bbfd2af97cbca412/reports/480c11f9-db29-46d2-bac9-f289149b463f/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b3a53e4f-38ba-45be-9910-28a590aca769
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/898688
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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: 531162 Sample: triage_dropped_file Startdate: 30/11/2021 Architecture: WINDOWS Score: 100 32 www.paramusinsurancebroker.com 2->32 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 4 other signatures 2->50 11 triage_dropped_file.exe 17 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\cfall.dll, PE32 11->30 dropped 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 15 triage_dropped_file.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 Queues an APC in another process (thread injection) 15->70 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.rem-youth.com 107.163.176.60, 49790, 80 TAKE2US United States 18->34 36 www.caylalamar.com 35.169.40.107, 49817, 80 AMAZON-AESUS United States 18->36 38 3 other IPs or domains 18->38 52 System process connects to network (likely due to code injection or exploit) 18->52 22 msiexec.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.travellerbugs.com 22->40 42 HDRedirect-LB6-54290b28133ca5af.elb.us-east-1.amazonaws.com 22->42 54 Self deletion via cmd delete 22->54 56 Modifies the context of a thread in another process (thread injection) 22->56 58 Maps a DLL or memory area into another process 22->58 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c/
Threat name:
Win32.Trojan.Nemesis
Create hunting rule
Status:
Malicious
First seen:
2021-11-30 11:07:43 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
7 of 28 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4xbfotbogqhmqivs3grok5xbs3ykbsdtsnqdq7d7fuor2bau546a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
21350c749a15b06efda33cae533086eab02ef83685d539556407633676de94bb
Formbook
4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8
Formbook
8ab0631733cbd75ee80236daf25af3a79d6c2471c2c5b3f354407f92101bea28
Formbook
bb407aec9554cfa1ca49316956bb79bc0d4b56de2041ac864dcca689997bf20f
Formbook
bb8e1d48225b002a4da7d0c33051e7fc457e244ed610f536b87702439d978a46
Formbook
d9acad219b9fa52e4258fafd8c85b9e473b8f99435f4d9af4dbb953fae94a17d
Formbook
ede0725557e08c21c523681648ace4a5b9d7b3dcfc29f4cda7db92c80b61f038
Formbook
f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
Formbook
+ 12'012 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:m07f loader rat
Link:
https://tria.ge/reports/211130-qwth2sacb6/
Behaviour
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ff4cu6twc.xyz/m07f/
Unpacked files
SH256 hash:
e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c
MD5 hash:
249d02485643ef7099f272687c05aab5
SHA1 hash:
c5c12e46a31a37be2bc4cb7bd9b2f8d157fdd867
Link:
https://www.unpac.me/results/873c0ea2-7051-4973-85ae-b661482bcad5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe e5c2574c2e340ec822b2d9a2e576e196f0a0c8739360387c7f2d1d1d0414ef3c

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/209938/
  
URLhaus
https://urlhaus.abuse.ch/url/1838498/
  
Delivery method
Distributed via web download

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