MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d. 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 File information Comments
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SHA256 hash: 37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d
SHA3-384 hash: 791d856eac5a4c8c17418917098d52d7e14faeb26e6d0d2f3ff93cb51eff286743057f1933cf675efd69d545f2aed984
SHA1 hash: 444452c7815dc8fb47ad829af43ec0527f6bcc57
MD5 hash: c3ed9e3e0a175a9b8cf5cf02598e99b1
humanhash: xray-paris-cup-lemon
File name:PAYMENT INSTRUCTIONS COPY.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:346'668 bytes
First seen:2022-02-25 09:28:15 UTC
Last seen:2022-02-25 14:11:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:TxDGkKgBk5s0KZ2FMlqYUTF9aIn0Umrbnf3LmClh2RSAoDVJVEYtEIeqK:UgBkRm2FMlIT3aIBw73LmCb2R1oDVJ1S
TLSH T15D74237F70C0DB83F6BA4D70B0ABEAE7D237A6431431120317F66F682DB4996560D291
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
248
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/244662/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.1.29352.31447.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6218a164dfdfa8501c598d0a/reports/1bd8b8ff-77f3-4451-901c-2b499c81c66f/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5d8fa48b-ee16-4d80-a7d4-adaada6d4d48
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/946303
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
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)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 578784 Sample: PAYMENT INSTRUCTIONS COPY.exe Startdate: 25/02/2022 Architecture: WINDOWS Score: 100 36 www.b3yg6g.com 2->36 38 alb-pl2-web.int-digi.com 2->38 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 6 other signatures 2->54 12 PAYMENT INSTRUCTIONS COPY.exe 18 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\wljkjsd.exe, PE32 12->34 dropped 15 wljkjsd.exe 12->15         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 15->62 64 Machine Learning detection for dropped file 15->64 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->66 68 2 other signatures 15->68 18 wljkjsd.exe 15->18         started        process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 18->40 42 Maps a DLL or memory area into another process 18->42 44 Sample uses process hollowing technique 18->44 46 Queues an APC in another process (thread injection) 18->46 21 explorer.exe 18->21 injected process10 process11 23 WWAHost.exe 21->23         started        signatures12 56 Modifies the context of a thread in another process (thread injection) 23->56 58 Maps a DLL or memory area into another process 23->58 60 Tries to detect virtualization through RDTSC time measurements 23->60 26 cmd.exe 1 23->26         started        28 explorer.exe 177 23->28         started        30 backgroundTaskHost.exe 2 23->30         started        process13 process14 32 conhost.exe 26->32         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-02-25 09:13:38 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g75wxbssiaz7wb4epy2vbf333abioaidsrsugg6ytiz6q4h7frgq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:yrcy loader rat suricata
Link:
https://tria.ge/reports/220225-lfw7sahaaq/
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
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c65a6af5fa8719686bd9fb55055ee825ec87b5e4adf7e58baa5676b45600ea7e
MD5 hash:
152b5fcf2580b07523200858789d1abc
SHA1 hash:
db90e619c454ed44bc97bd0e057d572e82c67cf7
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ebbb6419-332e-4800-9427-fdfd81937b46/
Parent samples :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 hash:
c84fbc6f8bab9d8a59e36fcab57f2c80afe0f14a584ca72bbc1b9a2c7bba30eb
MD5 hash:
83de4ffbd4d2f344865c538f418a4a72
SHA1 hash:
c826f489f0fbac5c77b323e40faaff60d66b0717
Link:
https://www.unpac.me/results/ebbb6419-332e-4800-9427-fdfd81937b46/
SH256 hash:
37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d
MD5 hash:
c3ed9e3e0a175a9b8cf5cf02598e99b1
SHA1 hash:
444452c7815dc8fb47ad829af43ec0527f6bcc57
Link:
https://www.unpac.me/results/ebbb6419-332e-4800-9427-fdfd81937b46/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/37fb6b865240/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d

File information

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

Malspam

Formbook

Executable exe 37fb6b86524033fb07847e3550977bd8028701039465431bd89a33e870ff2c4d

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/244662/

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