MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849
SHA3-384 hash: f53ef2ee12116fec625a890bce1bfda96a2a7054657130c01f9e1dcd5296c8abd2c8296e2dcf200e951d396344357358
SHA1 hash: d1a4fd227e85d77dae3e04823f26d225706c36f6
MD5 hash: aecb4e06eb4447cae38b403989190cf1
humanhash: kitten-leopard-alaska-low
File name:4849708PO # RMS0001.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:54'744 bytes
First seen:2021-03-22 07:32:52 UTC
Last seen:2021-03-22 09:35:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:rhas+5jvr+JjmQz1dYAiwOMgSGflvuGflvx/FIwJGun51cGflvx/FIwJGun5DhPu:rh8+JXdYAPZSFu
Threatray 4'251 similar samples on MalwareBazaar
TLSH 3533EBEC8EA544E7D5BDFA3092C2A14AA5F0FA772404596B40833EC3C59ABD36DD016F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: gmail.com
Sending IP: 103.156.91.170
From: Taha Sunrays Trading <tstb.umair@gmail.com>
Reply-To: tstb.umai@gmail.com
Subject: REQUEST FOR QUOTATION2021-2773T
Attachment: 4849708PO RMS0001.zip (contains "4849708PO # RMS0001.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4849708PO # RMS0001.exe
Verdict:
Malicious activity
Analysis date:
2021-03-22 07:38:27 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d74da247-001f-40de-b725-d9d0cc0c6117

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen12.51207.20311.3522.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Launching cmd.exe command interpreter
Sending a UDP request
Unauthorized injection to a system process
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.
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/647437
Signature
Antivirus detection for URL or domain
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides threads from debuggers
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
Sigma detected: Suspicious Svchost Process
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: 372682 Sample: 4849708PO # RMS0001.exe Startdate: 22/03/2021 Architecture: WINDOWS Score: 100 39 www.optimisewellness.com 2->39 41 www.endocrinologyga.com 2->41 43 2 other IPs or domains 2->43 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 7 other signatures 2->65 11 4849708PO # RMS0001.exe 15 8 2->11         started        signatures3 process4 dnsIp5 51 liverpoolsupporters9.com 172.67.176.78, 49698, 80 CLOUDFLARENETUS United States 11->51 69 Hides threads from debuggers 11->69 15 4849708PO # RMS0001.exe 11->15         started        18 cmd.exe 1 11->18         started        20 WerFault.exe 23 9 11->20         started        22 4849708PO # RMS0001.exe 11->22         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 24 explorer.exe 15->24 injected 28 conhost.exe 18->28         started        30 timeout.exe 1 18->30         started        process9 dnsIp10 45 www.payscsr.com 45.79.19.196, 49722, 80 LINODE-APLinodeLLCUS United States 24->45 47 wahaclean.com 66.85.46.86, 49735, 80 HOST4GEEKS-LLCUS United States 24->47 49 15 other IPs or domains 24->49 67 System process connects to network (likely due to code injection or exploit) 24->67 32 svchost.exe 24->32         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 32->53 55 Maps a DLL or memory area into another process 32->55 57 Tries to detect virtualization through RDTSC time measurements 32->57 35 cmd.exe 1 32->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-03-22 01:47:05 UTC
AV detection:
8 of 47 (17.02%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rq4ougyhvrvpocbygsej43ezt7mezbl2oz6pbeul4htyckszjbeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
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92ddc88d7c1bde849c18747f4fcd526c240a81efe9c74ee1dcaa4a72ecc9ac3a
Formbook
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Formbook
e091222f766082c33c0606405115206cb2d915929dfe2ac899b1945d6442c512
Formbook
+ 4'241 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210322-l7pgbm13cs/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.wahaclean.com/8ufh/
Unpacked files
SH256 hash:
8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849
MD5 hash:
aecb4e06eb4447cae38b403989190cf1
SHA1 hash:
d1a4fd227e85d77dae3e04823f26d225706c36f6
Link:
https://www.unpac.me/results/167bba0f-70f0-4c4b-b733-050324c4e892/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

zip 9d8e62c50c8a9b1d8013b2a9c021b5afc8a5e4238709f65e022a5d12219f1acd

Formbook

Executable exe 8c38ea1b07ac6af7083834889e6c999fd84c857a767cf0928be1e7812a594849

(this sample)

  
Dropped by
MD5 bd0ec3008560900d10ebd4d15c0a962c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 9d8e62c50c8a9b1d8013b2a9c021b5afc8a5e4238709f65e022a5d12219f1acd

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