MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec3275973764fa95e7fd95628318c58c9731eeaf4a530f80e954330e8de52e6f. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec3275973764fa95e7fd95628318c58c9731eeaf4a530f80e954330e8de52e6f
SHA3-384 hash: c2c91cd9ec2ed281890ba48b19c4a4d84c3602c5caaa0c927428adb0227700ff5ee5cbd5d173b4fe7fb8081c17a57140
SHA1 hash: 08bc0a60a6a43a6621e9d75b254094045f93f492
MD5 hash: f15ef15b0854abfa9a8effea0b95b782
humanhash: ack-enemy-kilo-oven
File name:USPS - Package on hold.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:483'328 bytes
First seen:2020-06-02 06:59:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:0Pn62hlAehgisctSWnixs+0VF0MSO07LOo0T1TgJL8Zv72Q:0S2hlAEgZctSGes+Zg0fs1TgJgZD2Q
Threatray 5'333 similar samples on MalwareBazaar
TLSH B6A4C02016B44923CAAF8376D0DA010953E1CA6D0586E7DDFA0272EA6F3F376F06755B
Reporter abuse_ch
Tags:exe FormBook USPS


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: box.onnydx.com
Sending IP: 167.71.135.230
From: USPS <me@onnydx.com>
Reply-To: <me@onnydx.com>
Subject: USPS held your package delivery due to incomplete delivery address
Attachment: USPS - Package on hold.img (contains "USPS - Package on hold.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-02 00:44:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
18 of 31 (58.06%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5qzhlfzxmt5jlz75svrigggfrsltd3vpjjjq7ahjkqzq5dpffzxq._file
Verdict:
malicious
Similar samples:
019d66a867b6b5e15b41453877f08a68fcedc98616782791e34fa4cd40f8e2b6
FormBook
2ff5f726080125732c91296d7bce8b496e5d50d2fb8b3d028f0f41990565015e
FormBook
58f28dd7cc2c257f5ac8dec9111d8cf8942e1cf62bb8334f4922e4b124d4eab9
FormBook
67919ae47a37d6ee2dab5c3899fdd83f293f06f5678aab8c7219e497f74690ec
FormBook
67c174f4fdeb4a63472a22bb21de9d1b472da3521dcfa4ba8b285e25e1f1fa26
FormBook
7d667845924245b2c6acee25a643afab5ad0a822614574c93cbf19ff0bb4f8c4
FormBook
a8fb290af4d6f3cb59e034cfb61e7c6981f246c98c1929b35302bca73a05a472
FormBook
bb87a6186306d0417e723b3ae04b70193f32d8b5fe479de840ed10f243234c4d
FormBook
c8106842608e4f4300a6fe2f369914e6ff67013c4c66edf42a0b54bdd55f5c91
FormBook
cbbc3af13a3cc33ff5dffb137c7276dd246f9b9a696de51d6858461e986d4ebd
FormBook
+ 5'323 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201109-nvg3cnzzqn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Maps connected drives based on registry
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.vinoblay.com/wkx/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Formbook
Create hunting rule
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:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

FormBook

img 0f3cfb1ba9ae6cfc6e7015513ae161f94182a17efc7de4383089e0751a0c404a

FormBook

Executable exe ec3275973764fa95e7fd95628318c58c9731eeaf4a530f80e954330e8de52e6f

(this sample)

  
Dropped by
MD5 f271d3dfdbd2f187b3bc496a25ebe7e2
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0f3cfb1ba9ae6cfc6e7015513ae161f94182a17efc7de4383089e0751a0c404a

Comments