MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 528855cf41335ffa3099457ea280c63afba531ec224b3c3ee9eb293b369db220. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 528855cf41335ffa3099457ea280c63afba531ec224b3c3ee9eb293b369db220
SHA3-384 hash: e08c4de00ff8450118128f409f56aa2cf6da88aa14f3c738955a42b6da1b30f92b1cc28cec25ae58d26785cdb87542c0
SHA1 hash: 1ee040a6168532f78584e51bc07e3df2fc1ae796
MD5 hash: d7fe417e0330a172af1bce5d99e9e1cd
humanhash: nebraska-four-uranus-cold
File name:RFQ-PO#40062.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:517'632 bytes
First seen:2020-06-19 06:53:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:m/QrCpGBsdD8kXkNFOVRGmHrG/CYB2BGDqGvcae+PUMIT9plED4gyTW:fCpf8TriGmLG/5BuGv9PUrx9/
Threatray 5'210 similar samples on MalwareBazaar
TLSH 3BB4C0047785C967C6F86B3589E2E13003763EFA3C36DA0EAE8479EE1F72BD50590166
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: sungwon7.co
Sending IP: 111.90.158.36
From: Hailey Li Trang - sales Dept <alandrew@netvigator.com>
Reply-To: alandrew@netvigator.com
Subject: RFQ-PO#40062 JUNE2020
Attachment: RFQ-PO40062.rar (contains "RFQ-PO#40062.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/9490/
Detection(s):
SecuriteInfo.com.Generic.mg.c1dd65dc9d8d1861.9824.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-06-19 06:55:07 UTC
AV detection:
23 of 30 (76.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kkeflt2bgnp7umeziv7kfagghl52kmpmejftypxj5mutwnu5wiqa._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
154d6b81bf4dcce3911f5c72f4790569e1cd91aee0040e7c1341f5286952bafe
FormBook
28e0480e53be4629a94065b585de49dd5c04e5c319cdc4f4be9c8631b44dbf68
FormBook
3026e3d087b09043925e42928fa0764af54475791f45f8ce97ce3f72b0a66e50
FormBook
50f8d8b5cbbad3f2a1d4a25b84553ba285f49318ab3dbb8d436b6709582997e8
FormBook
597022d4e4794fb02c89a43939d93d1b2b1140e798e355c2a53a8423f19514ad
FormBook
879e1880a4d2d7f0245a1267cf5bd4447eab697eea8680aa96ecf73f8a2c78f5
FormBook
8e3558d36802ba3f0da7c2b1188d5f12918959c2674e5421c2d15fad57d712e9
FormBook
a841d5eddb5208f4740c9d305151742f0a4c39b113e91d41414af98ff19c6c3d
FormBook
cbd6e5626ae84385a9fc7a7eab1877be367ef0b69dc1c4a8de1f668ecb018ab2
FormBook
da598cdcc8c0be3634bafe7bfb3ca0137e1ae0f785fcbe679f63a79fde4c3131
FormBook
+ 5'200 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
spyware persistence trojan stealer family:formbook
Link:
https://tria.ge/reports/200624-pl2fexlk2e/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run entry to start application
Reads user/profile data of web browsers
Deletes itself
Formbook
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

rar 2ea5d1035f80d02d567d2e87c653dcfb38ac96fb73a330d5d422ffb52525ae70

FormBook

Executable exe 528855cf41335ffa3099457ea280c63afba531ec224b3c3ee9eb293b369db220

(this sample)

  
Dropped by
MD5 88eb51409163a726d98ab95817f18fc5
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 2ea5d1035f80d02d567d2e87c653dcfb38ac96fb73a330d5d422ffb52525ae70
Cape
Cape
https://www.capesandbox.com/analysis/9490/

Comments