MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 990f9670fa7d9b45b44f6f4e9de0ad9a71c2f519d4b654ada06464f742d5899a. 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 2 File information Comments
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SHA256 hash: 990f9670fa7d9b45b44f6f4e9de0ad9a71c2f519d4b654ada06464f742d5899a
SHA3-384 hash: 4698614e2a51463fdaaed64e4bc0acd152972dc1cde4caaa19d6500bb648ef960900daf5b9afb7b313c8d98d5f4bee2c
SHA1 hash: 51f388209524ce20b47e872f1e54ee0991c201ff
MD5 hash: 4ce4756f9e0f915b5691cdc4576a65c9
humanhash: cold-mockingbird-shade-stairway
File name:6600007714.exe
Download: download sample
Signature Formbook
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File size:299'135 bytes
First seen:2022-02-14 13:58:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owkMbgPsY1FhQYes5RZteH2fxeG+yK13tF66UtEiMv73q1ALbTbLlrX9:rbwsYHhN5RZteWfxon13tQJtEiYTq1Aj
Threatray 13'325 similar samples on MalwareBazaar
TLSH T19D54135634C58473D86709F90F35BF73D7B8860EEB950787A3B88F6B1B524C2898A5C2
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/241372/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
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/492b743c-7a85-4c54-845b-d40821831c82
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939389
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
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 signatures2 2 Behavior Graph ID: 571863 Sample: 6600007714.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 6 other signatures 2->53 11 6600007714.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\oxvhyntby.exe, PE32 11->31 dropped 14 oxvhyntby.exe 11->14         started        process5 signatures6 61 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->61 63 Tries to detect virtualization through RDTSC time measurements 14->63 65 Injects a PE file into a foreign processes 14->65 17 oxvhyntby.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 arslantrader.com 173.255.247.91, 49787, 80 LINODE-APLinodeLLCUS United States 20->33 35 www.oakandorange.com 13.56.33.8, 80 AMAZON-02US United States 20->35 37 3 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 msiexec.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/990f9670fa7d9b45b44f6f4e9de0ad9a71c2f519d4b654ada06464f742d5899a/
Threat name:
Win32.Trojan.GenericML
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Status:
Malicious
First seen:
2022-02-14 13:58:23 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
24 of 27 (88.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tehzm4h2pwnulncpn5hj3yfntjy4f5iz2s3fjlnamrspoqwvrgna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1eb4790d6bde96e2486580793a9f6759241f0bde48e6b7f1df0e9a1e62e6a1e5
Formbook
87cca4e4ba65094241bbb379ca3677932f6e399ece811334a07a72ff5b3073f8
Formbook
c140031248f1bcd6ee445b1ccf588057a3b190c8ee4b8d891b58e2aa0561509b
Formbook
d0ce91945a10abde8e7569759e78430c80fb8fa42589dfaccf565cf6895f8846
Formbook
dee29915a45463d25c7f4de2abac14269137c359f848baf8ad4205fb07e2fa0b
Formbook
e08593ebcd4ac9265c1f27d987a67f43b2c8a9e9c680e9d47901281a4c5878dd
Formbook
e149c419c1e3da9f42da46d4ba594ec7b97fc9a333bea11d1693b6750edf603b
Formbook
f556af7cd24cc02eba24924d19c42966a1a98b84dfabd78c523c55f492d54acd
Formbook
+ 13'315 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:bs11 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220214-raecnsahar/
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
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
49e8c59a7f1df9020210cc1912c83e6648a2d7beee96db0ba01d2cbd7ccc9c6d
MD5 hash:
d9f9dfae2d32da88369ddf011321ba3b
SHA1 hash:
ccc27f5859478135f976b9aac027de2d4a7a3e0c
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/a0e93591-ee91-48a2-b27f-18fe53ed5507/
Parent samples :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 hash:
28d1e0255cfd05d9c880028f58e22e2456c4d99733ac8368e16e65613f664eac
MD5 hash:
abc88770982f290762e4d8ee21cc97e8
SHA1 hash:
c2aaf521be508dc52288ef19d7e14ddf2c931b2c
Link:
https://www.unpac.me/results/a0e93591-ee91-48a2-b27f-18fe53ed5507/
SH256 hash:
990f9670fa7d9b45b44f6f4e9de0ad9a71c2f519d4b654ada06464f742d5899a
MD5 hash:
4ce4756f9e0f915b5691cdc4576a65c9
SHA1 hash:
51f388209524ce20b47e872f1e54ee0991c201ff
Link:
https://www.unpac.me/results/a0e93591-ee91-48a2-b27f-18fe53ed5507/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/990f9670fa7d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/990f9670fa7d9b45b44f6f4e9de0ad9a71c2f519d4b654ada06464f742d5899a

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/241372/

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