MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b258aed05413eb191250d2907db5b64c4f36fdb0508fb3c9c6390c4144fd9497. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b258aed05413eb191250d2907db5b64c4f36fdb0508fb3c9c6390c4144fd9497
SHA3-384 hash: 023854509e812b453d561198fea71be7020025a9666d36b7d88531acbd88cb200db93094a4d5b8679fe82c0cc128c8f8
SHA1 hash: a9cba71526bbd7b1ff912774c1c5b623a90cff8a
MD5 hash: 6d687e89130f81088fcbf8f302700c1b
humanhash: carolina-delta-monkey-arizona
File name:PO894749745.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:450'560 bytes
First seen:2020-07-07 09:43:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:uDlYLdQfY612PHVOlcYlVQQdfbk1LvD9TghVr3tWP8Yb33R5xERBNUh98Nv2U+BV:vU+xBLIr8hzJam
Threatray 2'240 similar samples on MalwareBazaar
TLSH F6A48C7032276E63E63A08F5900118C05FB5AC57366DF2D9FDC1B1DA01E6F90AA526F7
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: regular1.263xmail.com
Sending IP: 211.150.70.203
From: Julie <cjianh@bak.com.cn>
Subject: PO894749745
Attachment: PO894749745.zip (contains "PO894749745.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/22171/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Launching a process
Launching cmd.exe command interpreter
Deleting a system file
DNS request
Unauthorized injection to a system process
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b258aed05413eb191250d2907db5b64c4f36fdb0508fb3c9c6390c4144fd9497/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 01:28:08 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjmk5ucucpvrsesq2kih3nnwjrhtn7nqkch3hsoghegecrh5sslq._file
Verdict:
malicious
Similar samples:
0047270c26f603d132bc8e6a67894311356fe2d3c977aa287a09a8261f6b5690
Formbook
00668e0dac77414a7a5fc8df4867e3a75fc928cdd97b57c068edb11522fecf97
Formbook
0d2b79e9ac449de6c300c43522e8581a971b4b08e004696e278608d6c4b46eb8
Formbook
23958a583d62bf343e2641dd871d6d788c99649a722fe1908fea9e72e78d17b7
Formbook
371a78d5f848b70de0d716586851eec55e92fc1e4e5898943c62c67a99c9e07a
Formbook
4052cabc6efdd8910b0c92b973d1a37172a92ee408fc53209d746cfb65e08dcc
Formbook
7910fbd27cb1e4fd04a3356d45036821ed924ef1b8de3117d677be4938cb5140
Formbook
7c110f7a45aba8f26ba0eb32c024ea55598ec54d9ceda6cf13272a31d2cc6da0
Formbook
a0086dfee2dba4d6a0adab05e848cfbb9755f68be7adef3ff35ff9740e5a1c2e
Formbook
dee1fa115a3e06310b958baca7bf709144f770de027ab3c615f6937b7544cd75
Formbook
+ 2'230 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200707-drym26sdjs/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks whether UAC is enabled
Checks BIOS information in registry
Uses the VBS compiler for execution
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
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
Rule name:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Malspam

Formbook

zip 48e5e88ad1e591e8e26a5fbf27551382c8c55f0e272a5e40f26e73a2885ccb21

Formbook

Executable exe b258aed05413eb191250d2907db5b64c4f36fdb0508fb3c9c6390c4144fd9497

(this sample)

  
Dropped by
MD5 a478eea43fd932b1467566ede50126a7
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 48e5e88ad1e591e8e26a5fbf27551382c8c55f0e272a5e40f26e73a2885ccb21
Cape
Cape
https://www.capesandbox.com/analysis/22171/

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