MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c
SHA3-384 hash: 317f90b0b26de55cb60601761c4803a3de48c8a096e88f3e7cb500efaff21bea277f2fc5ec6ab2942f4e635c3d6213a1
SHA1 hash: 47050374dabe4e3c3a6b260ee7a515b2c9139c50
MD5 hash: d2041309d6ef5c0742820fc656d9b24c
humanhash: item-princess-ten-undress
File name:CI_PL #WS190903_20201016_XLs.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:967'168 bytes
First seen:2020-10-16 13:44:24 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 12288:w4bfhdh6/PZQZegFiqrhNxz0NakuXG2Gxdg0nw0a1E:w4bfh8POFhNxwNjuW2GTZh
Threatray 2'491 similar samples on MalwareBazaar
TLSH 7725BE45F6298E07CCDF0BF84967C128F3B47E051918DB4E6E9875DC2672B902AD2E4B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail.airmancur.co.id
Sending IP: 202.74.236.90
From: Chris Chung <c.chung@topocean.com.tw>
Subject: RE: Shipping Advice #WS190903_20201016
Attachment: CI_PL WS190903_20201016_XLs.arj (contains "CI_PL #WS190903_20201016_XLs.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/72064/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42621.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/493766
Signature
.NET source code contains potential unpacker
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 299346 Sample: CI_PL #WS190903_20201016_XLs.exe Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 31 www.miyakekodomoiin.com 2->31 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AntiVM_3 2->43 45 6 other signatures 2->45 11 CI_PL #WS190903_20201016_XLs.exe 3 2->11         started        signatures3 process4 file5 29 C:\...\CI_PL #WS190903_20201016_XLs.exe.log, ASCII 11->29 dropped 55 Injects a PE file into a foreign processes 11->55 15 CI_PL #WS190903_20201016_XLs.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.hazyblurcreative.com 154.213.63.145, 49760, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 18->33 35 www.shadent.store 66.96.162.137, 49754, 80 BIZLAND-SDUS United States 18->35 37 www.tifeeds.com 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-16 05:52:07 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2cc5jvbxbmbag3p6txt4sbq5rcukltiszphnnw64vg5cc4isg5oa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
41e247af1c9e83534cd1a251b618432759435c3f9c9dfd2c8760f712a6ccc5a4
Formbook
4ba0d07d32c048141100317f95bd6dd8b791ba9c6608730b8408530490a13922
Formbook
718d659864d771ebadf82d8b5461d39c2bd6bd514ea2d2273d2821a23ab28ed0
Formbook
73c2d8d44daa16a7b406b82cd5201483ae40404037e7a543ad91689cbced81ad
Formbook
765c1e7486aedffd7021ae5f15c86e549c7b796a5025249781f9c8a6327f4037
Formbook
76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8
Formbook
a998850fc7940055baac6f61dde2d0e29836c9386ac87555549eeaa1a9998401
Formbook
af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
Formbook
db53a27c43dddb419e9d058e6288f3c1e7fc7e4bd62e3bb048e7103dcf79d682
Formbook
f4854fb409d136b74193144c50c888b36bbbbcde71b52acb5f8177a862ebd76c
Formbook
+ 2'481 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201016-wz5fdxlrtx/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mybriefbox.com/sdk/
Unpacked files
SH256 hash:
d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c
MD5 hash:
d2041309d6ef5c0742820fc656d9b24c
SHA1 hash:
47050374dabe4e3c3a6b260ee7a515b2c9139c50
Link:
https://www.unpac.me/results/52a40ee2-c675-42d0-9e83-c01567fae8f9/
SH256 hash:
b67aece23271a63f1a0850b4dead9f34fb94729be7b934483cccc0f91dafa428
MD5 hash:
33204dbbe48eb1e528f79f3e013d1c9f
SHA1 hash:
6fa109b312db925a798051a7ee12f5e738b699fd
Link:
https://www.unpac.me/results/52a40ee2-c675-42d0-9e83-c01567fae8f9/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/52a40ee2-c675-42d0-9e83-c01567fae8f9/
SH256 hash:
d4acd33258b1d3ed7b0aee563686718cfe4e47fa16b002efdecd03b6eae7394b
MD5 hash:
88f7bb341e6d5f3c2a94fa5de3603371
SHA1 hash:
d3be8988a2bf621993bcd71ebf7ecf4e1d60799d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/52a40ee2-c675-42d0-9e83-c01567fae8f9/
Parent samples :
a998850fc7940055baac6f61dde2d0e29836c9386ac87555549eeaa1a9998401
765c1e7486aedffd7021ae5f15c86e549c7b796a5025249781f9c8a6327f4037
af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c
410b12d131a36c0b5be88c52e6ad02a1e50b20c4d80f30de42ea5a260fc92624
4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c

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: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 4874da934df8a9aac131e6c55d3976e62122041475df43ad7be71d67e34ee3ce

Formbook

Executable exe d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c

(this sample)

  
Dropped by
MD5 f1d69a81d3e0b35920be64f1360cff49
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72064/
  
Dropped by
SHA256 4874da934df8a9aac131e6c55d3976e62122041475df43ad7be71d67e34ee3ce

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