MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
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SHA256 hash: 54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111
SHA3-384 hash: 3210bf6d30d9e4392b180f2b9146acc2ed308b2aabbe1b63ac81b5802360ffcf71f2027ecf0f73345020e8f3c377f9b5
SHA1 hash: c0affb16bc2118f29f460949e6109800e5e1d47a
MD5 hash: 79d0e122154f127dcb8f1f65cd05446b
humanhash: item-don-table-floor
File name:P21-0033 大汉国际.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:932'352 bytes
First seen:2022-04-06 10:58:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:W1qWx3ufk2/6hcemEqWGxEY2o1HdxBkoX/QwJ6jKRPNcUUSSXi5Qys7XKBbh7KSB:W13+M7cemEqWXY9CwP85aaCRBV76Peb
TLSH T1DB15A49D722072EFC857D4729EA81DA8FB6174BB931B4207902716ADDE0D897CF244F2
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/261204/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.12095.5935.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe evasive obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/624d7278db9ca5cf842c7021/reports/25e08ec6-62bc-4452-85c4-f927b01ea19c/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9eb30a54-0f1e-46dd-b4cd-04281a40e746
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971400
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 603887 Sample: P21-0033 #U5927#U6c49#U56fd... Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 31 www.chouwakarunewssokuhou.com 2->31 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 10 other signatures 2->39 11 P21-0033 #U5927#U6c49#U56fd#U9645.exe 3 2->11         started        signatures3 process4 file5 29 P21-0033 #U5927#U6...U56fd#U9645.exe.log, ASCII 11->29 dropped 49 Injects a PE file into a foreign processes 11->49 15 P21-0033 #U5927#U6c49#U56fd#U9645.exe 11->15         started        signatures6 process7 signatures8 51 Modifies the context of a thread in another process (thread injection) 15->51 53 Maps a DLL or memory area into another process 15->53 55 Sample uses process hollowing technique 15->55 57 Queues an APC in another process (thread injection) 15->57 18 explorer.exe 15->18 injected process9 process10 20 msdt.exe 18->20         started        signatures11 41 Self deletion via cmd delete 20->41 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        25 explorer.exe 2 175 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-06 10:59:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ksurje4zy3ij2s6xf775uz2ushiuzs4rhiiacnfpg2lyfd4k2eiq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:inga loader rat
Link:
https://tria.ge/reports/220406-m3dvdscbg6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
40c79c1389c65d04c9cb312c8289809ce29b608ac012a0340d47f3a38e605008
MD5 hash:
8f0fb0965ae5a62713154a5108c02b70
SHA1 hash:
5407d0e0646e663d9b0dc43804618cab796ac671
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/d4904ba1-8d20-4e46-93d3-ff464854d135/
Parent samples :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 hash:
0da483e4e58883710a6d0aa0312982ff72da86925d04a2ef8652d2e3b77c34af
MD5 hash:
462549a1e8fb101672f0841c987681d8
SHA1 hash:
c567d1752587ec80f4553225ade3b2cfbab51e21
Link:
https://www.unpac.me/results/d4904ba1-8d20-4e46-93d3-ff464854d135/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/d4904ba1-8d20-4e46-93d3-ff464854d135/
SH256 hash:
54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111
MD5 hash:
79d0e122154f127dcb8f1f65cd05446b
SHA1 hash:
c0affb16bc2118f29f460949e6109800e5e1d47a
Link:
https://www.unpac.me/results/d4904ba1-8d20-4e46-93d3-ff464854d135/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/54a9149399c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 54a9149399c6d09d4bd72fffda675491d14ccb913a100134af3697828f8ad111

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/261204/

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