MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081. 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
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SHA256 hash: 936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081
SHA3-384 hash: 75a26ac806f8ced9167794827245d0ead4d24c4b0a1e1f209793cd573f2293d1ed64a8e67a1945d932ba2b2443a4e4bf
SHA1 hash: e082f9b8bcd10a5a0635a84bf99964d655874800
MD5 hash: 22b8f8e6ff4f56dbfed9987511cd6332
humanhash: rugby-fifteen-table-arizona
File name:Shipment Details - Couva 760P - SO 10169195.pdf.exe
Download: download sample
Signature Formbook
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File size:556'032 bytes
First seen:2022-04-01 13:18:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:y4xZToukfoRKi9FoRTsNjdQQ4GqSUBEdAeSKijqTmzQZUvs7bjpz9fa+44m8zQQG:d0SKWFKWVqIAeS1jqi0R1z9VsoQxqi
TLSH T10FC4011DB6B9CE52C4A916F185C742200379D78B71B3E7896DC813C68E437D36D4A39B
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.25238.3017.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/6246fb8da19c649412b93f5c/reports/fd36efa9-30a9-44e9-9970-bd441f7de490/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/eb913616-0379-4821-b51d-28e0ffaf695c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/968989
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 601477 Sample: Shipment Details - Couva 76... Startdate: 01/04/2022 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 9 other signatures 2->35 10 Shipment Details - Couva 760P - SO 10169195.pdf.exe 3 2->10         started        process3 signatures4 45 Injects a PE file into a foreign processes 10->45 13 Shipment Details - Couva 760P - SO 10169195.pdf.exe 10->13         started        process5 signatures6 47 Modifies the context of a thread in another process (thread injection) 13->47 49 Maps a DLL or memory area into another process 13->49 51 Sample uses process hollowing technique 13->51 53 Queues an APC in another process (thread injection) 13->53 16 explorer.exe 13->16 injected process7 process8 18 cscript.exe 16->18         started        21 autofmt.exe 16->21         started        signatures9 37 Self deletion via cmd delete 18->37 39 Modifies the context of a thread in another process (thread injection) 18->39 41 Maps a DLL or memory area into another process 18->41 43 Tries to detect virtualization through RDTSC time measurements 18->43 23 cmd.exe 1 18->23         started        25 explorer.exe 2 173 18->25         started        process10 process11 27 conhost.exe 23->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-01 13:19:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=snv2ngqwkekcu3foqg2ozaglcnxvbsgukrvhxpwrpwpxhqkykcaq._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:cnt4 loader rat suricata
Link:
https://tria.ge/reports/220401-qjx1psgafq/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
3d10e391c75dbd7aea54fca25d65fc8e8567aacb87410b0a71a50352d722c53c
MD5 hash:
169fef09540f138687bd08584e6eada0
SHA1 hash:
4194e60b7e11dd690c3323b7519747cccc524caf
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/e7b03059-0c06-4f9c-be46-a9dd9fba2d08/
Parent samples :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 hash:
a63333e184c9ad36302eccfebdcf792be7c8565d6f7760838ae895af39fb7210
MD5 hash:
abb2773d0b0c04b64c86b6501a001559
SHA1 hash:
e0b040de5a0a7f1d38fa9ff34e3960e4f0f9e8d7
Link:
https://www.unpac.me/results/e7b03059-0c06-4f9c-be46-a9dd9fba2d08/
SH256 hash:
8e86ed14fe1b6b2310bc37756b99ba467dc99d0215aa14091775397f330f8603
MD5 hash:
1089b9f7be95ec4f551d6423da0d642f
SHA1 hash:
322477e371dc6046bbe074f4cb6b879cb52d1d0f
Link:
https://www.unpac.me/results/e7b03059-0c06-4f9c-be46-a9dd9fba2d08/
SH256 hash:
71764eb60a83a17343af4a26bf3ec546c5ee08454722233fd5cf59693327b1a4
MD5 hash:
bfcf754fb9acba752f79f44817b7be23
SHA1 hash:
01af19456b6f97790973d0d67a97ecc362ab7aed
Link:
https://www.unpac.me/results/e7b03059-0c06-4f9c-be46-a9dd9fba2d08/
SH256 hash:
936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081
MD5 hash:
22b8f8e6ff4f56dbfed9987511cd6332
SHA1 hash:
e082f9b8bcd10a5a0635a84bf99964d655874800
Link:
https://www.unpac.me/results/e7b03059-0c06-4f9c-be46-a9dd9fba2d08/
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/936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081

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.

Malspam

Formbook

Executable exe 936ba69a1651142a6cae81b4ec80cb136f50c8d4546a7bbed17d9f73c1585081

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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