MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6. 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 2 File information Comments
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SHA256 hash: e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6
SHA3-384 hash: f856e3a1bf4ec76641453f1a05435a93a4b7e0b858f31197da59d3eef3bee00347f0034cad535789f921e6941a94c5f1
SHA1 hash: 16a7d3efcdfcb2f18bb471b9b1ec85c312afd306
MD5 hash: 95e20e34bfa712d353d203a675e1f643
humanhash: gee-carpet-bluebird-berlin
File name:No. STB42020.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:763'392 bytes
First seen:2022-03-01 12:32:38 UTC
Last seen:2022-03-01 15:11:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:XE+LR/ICQhGYAKWWlknOlDizGTUoyP3a6PWP2ulicXn4SaOvwa:f+GYAADE13aWduzEOvw
Threatray 14'412 similar samples on MalwareBazaar
TLSH T1E3F4BF0439EA5038F83A9BF1DBD0FBF1DB6EE221E44960F564000E554A55BBC894AEFD
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/245794/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.11469.20954.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/621e1281b94fb38cb42e4e44/reports/21ced231-b1d7-415c-844a-418633345413/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/12530c6a-46a1-4faf-8e5c-6ae727bb63c7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/948147
Signature
.NET source code contains potential unpacker
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
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 580628 Sample: No. STB42020.exe Startdate: 01/03/2022 Architecture: WINDOWS Score: 100 34 store-images.s-microsoft.com 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected AntiVM3 2->40 42 7 other signatures 2->42 11 No. STB42020.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\...32o. STB42020.exe.log, ASCII 11->32 dropped 14 No. STB42020.exe 11->14         started        process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 process9 19 rundll32.exe 17->19         started        signatures10 44 Self deletion via cmd delete 19->44 46 Modifies the context of a thread in another process (thread injection) 19->46 48 Maps a DLL or memory area into another process 19->48 50 Tries to detect virtualization through RDTSC time measurements 19->50 22 cmd.exe 1 19->22         started        24 explorer.exe 172 19->24         started        26 explorer.exe 1 144 19->26         started        28 explorer.exe 19->28         started        process11 process12 30 conhost.exe 22->30         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-01 01:12:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4xz32yf45ei53pucokrbrmdjb77wwnxvq5vfd4tjcs2lazwrpsta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00d8e033e68ffe5f290339a1e00193b0376814bc8a27c8978b9b5e0de6b2823f
Formbook
0adfc99fefcb09f082e85f53025764a8ea4b0f35a4140540022be9de71bb58e9
Formbook
28c28db28e96276f72ce38a60d04f0711388d3f93ecb34d4721dc94fc2bf9f07
Formbook
4e1397fff753fe86be50e152d3e2ace6a8a9e0b3f8e63e77c0e0c1c1d6ed71c3
Formbook
60b97b4d45e3850d57a661bf37987909c1f99096384123594cc1b79d5449348f
Formbook
9e41bc1734c4bc894acdc9c08568cb2f1cd01078fa9b5f30d6f18c6383c22863
Formbook
9f033092c39f84850b90bbeb99c2fa53bb621a8467cdf399f77e08bfa892548d
Formbook
a4e51503957292fe946f001fdcaf2b6ac7cd935c7bca80d5f79754c14d93e03d
Formbook
aea459fb282282fc886f02283b2cfe1da12a6208e14859ffeb7f84a45a452bba
Formbook
f725b6a2466a6f4c7084eeab5994e30b8ef836633c1a84d85c1899deb1808d3c
Formbook
+ 14'402 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:m46a loader rat suricata
Link:
https://tria.ge/reports/220301-pq86wabfaj/
Behaviour
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)
Unpacked files
SH256 hash:
f7b953613cb87b7220f9b73583982a07afa136effe6e1d56ae3a4c0230968bd1
MD5 hash:
6fb87f025ce2d1fc228bf046605d0854
SHA1 hash:
711a8868cf1f6ef62c82578a7e759130cf40f80a
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/83a6e44f-38fe-4951-baf5-f3e44b37ed95/
Parent samples :
5645d9e38c998f5db43ae93e35339d7dca0a96b81f806b370624e7410e2eea0a
e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6
e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99
6a68426f18f239950d5bb0d82223890b44ea10de5a5fa83294457dd3dcdc5068
SH256 hash:
11b73196adc19d4e708a765880b33b7c0a3f299163a83dc0469744eb43bf5a7b
MD5 hash:
c1224b47f519127caf8754d7264467f6
SHA1 hash:
f315a845b844db6986c25dd36377bb1f716843b4
Link:
https://www.unpac.me/results/83a6e44f-38fe-4951-baf5-f3e44b37ed95/
SH256 hash:
f90b198f8d89646627f711cdd8e18f6eaf2687c11e704677c7cfced90bf5f0a5
MD5 hash:
8c7f7797e459e8018986450cbc540034
SHA1 hash:
c339bc48acec72c609eca07f1eab422ce7db9be1
Link:
https://www.unpac.me/results/83a6e44f-38fe-4951-baf5-f3e44b37ed95/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/83a6e44f-38fe-4951-baf5-f3e44b37ed95/
SH256 hash:
e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6
MD5 hash:
95e20e34bfa712d353d203a675e1f643
SHA1 hash:
16a7d3efcdfcb2f18bb471b9b1ec85c312afd306
Link:
https://www.unpac.me/results/83a6e44f-38fe-4951-baf5-f3e44b37ed95/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e5f3bd60bce9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

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/245794/

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