MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6
SHA3-384 hash: ea213ef1322a6b60a43662d56bbfe6077343b40914fd724288cd7306bc9861d542a16bc9b95a26f951d2c3566be84a84
SHA1 hash: 207739af6fb30c2c015259f551fc7971494886b2
MD5 hash: 8611e334707213c0161822c70703640f
humanhash: alabama-minnesota-jersey-king
File name:UPDATED e-STATEMENT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:774'144 bytes
First seen:2021-09-14 17:03:39 UTC
Last seen:2021-09-15 08:00:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:6LkJJWHCM2K4CPvKdFfE1w8AfDsh+lUzF6uhRKziOBjLxLBOSP7r9r/+pppppppn:b73CXKLfEW8SMBFRIiCdwS1q
Threatray 11'437 similar samples on MalwareBazaar
TLSH T15BF4BE84E9D95064ED3AAF706AF1DC75862BBEBA7931941C10CD3E173BB7B829811037
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
276
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UPDATED e-STATEMENT.exe
Verdict:
Malicious activity
Analysis date:
2021-09-14 17:05:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/616634ff-cf8f-43f4-9e9f-93b00fee9c72

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/187869/
Detection(s):
SecuriteInfo.com.Variant.Bulz.349164.15414.11699.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617510c0db358dd15ed9229d/reports/235b770d-f477-4e22-be6b-660feb6fd22e/overview
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/949c8495-df93-48b7-8be7-9fd6ace8cf23
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/850855
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 483286 Sample: UPDATED e-STATEMENT.exe Startdate: 14/09/2021 Architecture: WINDOWS Score: 100 33 www.usersedc.com 2->33 35 usersedc.com 2->35 37 www.frisohakkers.com 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 10 other signatures 2->51 11 UPDATED e-STATEMENT.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\UPDATED e-STATEMENT.exe.log, ASCII 11->31 dropped 63 Injects a PE file into a foreign processes 11->63 15 UPDATED e-STATEMENT.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 39 www.amazonfasttrackclearance.com 91.195.240.87, 49822, 80 SEDO-ASDE Germany 18->39 41 www.delawarepistolpermit.com 208.92.209.208, 49832, 80 ENTERHOST-ASUS United States 18->41 43 8 other IPs or domains 18->43 53 System process connects to network (likely due to code injection or exploit) 18->53 22 explorer.exe 18->22         started        25 autoconv.exe 18->25         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 22->55 57 Modifies the context of a thread in another process (thread injection) 22->57 59 Maps a DLL or memory area into another process 22->59 61 Tries to detect virtualization through RDTSC time measurements 22->61 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2021-09-14 15:39:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uekchpccch7yppbtypv52bclx2r6zpxmpobx54xloozkgvu3scta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
159415d33340dcf205d3d030f0d32cac913660bd456810d199de5f9cd8732705
Formbook
561562923f5bb53f6113b9a15c60cf2755437556e9e48cdc3fc3ae7ebe0171a7
Formbook
7f0511e940e8caa44c759e4696bf6b6b7f1389a2290b25c5e3f491270c63daab
Formbook
8f47a284801f2fea4d4024b2f9b222e4b58538ce71a16c4bba876fd92d9e4095
Formbook
a3af8681c8cd48f98c8bf2666e12d285963d2375ea4982e975144fee69806f82
Formbook
a42564801d666f9a210723ee247df72d71d93274e7556920957d5a98b237ab2c
Formbook
be797a9728d2139d4ea71acf7f60816eefc2cb5ec16ce3a366a78f67554d63be
Formbook
c48012dda89b9227c82c4523aa0b1b5045ecd2fef0c98189c6150cafaaf6d9cd
Formbook
e89eb8157e2caf74c4d36f1bef8492643c9071f115bafbfc17c050d54a5e172a
Formbook
f4cce075e6668d702051078ec9b14a1ed0c1620373187e5bade982a32bb17c1b
Formbook
+ 11'427 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:bqt25 loader rat suricata
Link:
https://tria.ge/reports/210914-vk9s4sbaek/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.yyygaming.com/bqt25/
Unpacked files
SH256 hash:
2ae17544d4c4dcf0a3769097a4e307f1557b5d1d1b031cc33bf305b9c8e70c0d
MD5 hash:
6b291964d908cb7881cb80cf07e978da
SHA1 hash:
aa4eb33dc43d08742d9b3570ed09cdd90b5abdd6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9f129468-a6f6-43eb-a6f5-7a4cb34b5ef8/
Parent samples :
f4cce075e6668d702051078ec9b14a1ed0c1620373187e5bade982a32bb17c1b
8f47a284801f2fea4d4024b2f9b222e4b58538ce71a16c4bba876fd92d9e4095
c48012dda89b9227c82c4523aa0b1b5045ecd2fef0c98189c6150cafaaf6d9cd
a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
Link:
https://www.unpac.me/results/9f129468-a6f6-43eb-a6f5-7a4cb34b5ef8/
SH256 hash:
9042e1e92ebe6280fd69047319fba090c81a49999811670fe02d000d124c15ee
MD5 hash:
facd81ec1e033295f8b8280b47b4b286
SHA1 hash:
b2fb3eb84ef764ec7166c0a9fd086f526f1a5b1a
Link:
https://www.unpac.me/results/9f129468-a6f6-43eb-a6f5-7a4cb34b5ef8/
SH256 hash:
a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6
MD5 hash:
8611e334707213c0161822c70703640f
SHA1 hash:
207739af6fb30c2c015259f551fc7971494886b2
Link:
https://www.unpac.me/results/9f129468-a6f6-43eb-a6f5-7a4cb34b5ef8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/a11423bc4211ff87bc33c3ebdd044bbea3ecbeec7b837ef2eb73b2a3569b90a6

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:dridex_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/187869/

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