MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5c13a058471a83c916b72920a93cccf42b19de33883004c8048f45ca8a1867f. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5c13a058471a83c916b72920a93cccf42b19de33883004c8048f45ca8a1867f
SHA3-384 hash: 81d6b936cbe85cb291d1d3ca33ffede7bfc630b79f42d882ddf1787f9e5e3e88fdb79bf5516d822f5c8a3bbb748ca182
SHA1 hash: 6e19015314e54de5188428b9b07e2785f510f76a
MD5 hash: d3e71291d2a07ea6f3784c6b3ab533ba
humanhash: edward-magnesium-lion-mockingbird
File name:附件订单 344A47783,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:339'539 bytes
First seen:2022-02-21 04:09:08 UTC
Last seen:2022-02-21 15:37:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:TwEzy1VCZMrRBu538m7CdlK2YjJ3DwP9DGlxNwnrlEzhGQ:Xy1VCZMrRBwulK2YjJzwFDGiONz
Threatray 13'589 similar samples on MalwareBazaar
TLSH T1977422B172C195FBE9A60EB125326B1993F1AF58F5A0460F6B247F0F3A361C318B6503
File icon (PE):PE icon
dhash icon 0e0c052525162b2d (22 x Formbook, 22 x RemcosRAT, 17 x AgentTesla)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/242838/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6213109e875593a3ccf89ccc/reports/51e27851-d4ef-4d54-9754-504b48b17790/overview
Result
Verdict:
MALICIOUS
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/496f9c62-4c73-45aa-be0f-9236fd365b8c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/942969
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 575447 Sample: #U9644#U4ef6#U8ba2#U5355 34... Startdate: 21/02/2022 Architecture: WINDOWS Score: 100 37 www.bcw.today 2->37 39 bcw.today 2->39 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 3 other signatures 2->63 12 #U9644#U4ef6#U8ba2#U5355 344A47783,pdf.exe 19 2->12         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\Temp\ighgxx.exe, PE32 12->35 dropped 15 ighgxx.exe 1 12->15         started        process6 signatures7 73 Tries to detect virtualization through RDTSC time measurements 15->73 18 ighgxx.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 49 Modifies the context of a thread in another process (thread injection) 18->49 51 Maps a DLL or memory area into another process 18->51 53 Sample uses process hollowing technique 18->53 55 Queues an APC in another process (thread injection) 18->55 23 explorer.exe 18->23 injected process10 dnsIp11 41 netrew.com 139.162.232.246, 49787, 80 LINODE-APLinodeLLCUS Netherlands 23->41 43 sperrmuell-berlin-abholung.com 185.221.216.34, 49788, 80 HOST4GEEKS-LLCUS United Kingdom 23->43 45 11 other IPs or domains 23->45 65 System process connects to network (likely due to code injection or exploit) 23->65 27 cscript.exe 12 23->27         started        signatures12 process13 dnsIp14 47 www.mathswithmike.online 27->47 67 Modifies the context of a thread in another process (thread injection) 27->67 69 Maps a DLL or memory area into another process 27->69 71 Tries to detect virtualization through RDTSC time measurements 27->71 31 cmd.exe 1 27->31         started        signatures15 process16 process17 33 conhost.exe 31->33         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a5c13a058471a83c916b72920a93cccf42b19de33883004c8048f45ca8a1867f/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-02-21 04:10:13 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxatubmeogudzellokjave6mz5bldhpdhcbqateajd2fzkfbqz7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
01222693e4698149f19d31ac66567a9815f89509bac13d690de8a5afda2bee08
Formbook
016ffff295ef62f445fc834377c44e8a843a0f11899cb88f9e4e0e05c54bc7e9
Formbook
081be32fe752d7e270c45f1d7a71889aa4452a590963da8dd75e3f26861ddba8
Formbook
2ef455592017e10cdda6c9a0378a35c232d90ad98d601ca2a1eccb64279fa97e
Formbook
39719289d429bc644b0e8d093e86729d45d4c6449aa615fe142efb5ec86eba69
Formbook
502303edd5a9de57b3667146e84f15fc4957242ca2ef8f75f5e503946c452ee2
Formbook
61f0f1442cc29e258378687f8a03c7b5a07785bcffe03aa4fb8a308246060ca5
Formbook
71bad0685e5b2447a8dcdc960ee2930ad5ec4910d5d449040fb52cb9754df2a2
Formbook
9f1499cbd4efd2e15b95e7e848598ff522bcb740bfb81c34d6c7f596d981439b
Formbook
+ 13'579 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/220221-erd21sdhd8/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
Drops file in Windows directory
Unpacked files
SH256 hash:
fc1b5b2768db34a8c4736edb2327f65a74707b6d4d2b46246a657c103950d722
MD5 hash:
16dda8eabb48dd675af13d82b575f2e7
SHA1 hash:
ce2b022026f490347c8122819f343ef927cf597a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/271d1da7-9936-47a4-84d8-da7a9fea7558/
Parent samples :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 hash:
d451dab9954cd2d0ee1112db4a2861f0e779df56069ddff7145c78ef80302461
MD5 hash:
98b7991139b0abc9ef2607ea88a9ca88
SHA1 hash:
e183d92f01e0b23f2c8eb8cbaf2803555b4045a6
Link:
https://www.unpac.me/results/271d1da7-9936-47a4-84d8-da7a9fea7558/
SH256 hash:
a5c13a058471a83c916b72920a93cccf42b19de33883004c8048f45ca8a1867f
MD5 hash:
d3e71291d2a07ea6f3784c6b3ab533ba
SHA1 hash:
6e19015314e54de5188428b9b07e2785f510f76a
Link:
https://www.unpac.me/results/271d1da7-9936-47a4-84d8-da7a9fea7558/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/a5c13a058471a83c916b72920a93cccf42b19de33883004c8048f45ca8a1867f

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/242838/

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