MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4. 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: f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4
SHA3-384 hash: af056a0939c1832ff0c645bcb1080721982672ee3d4930ff4d07c9936e817990c7a44ca4bfe6f53421461be62cd54b37
SHA1 hash: ea024a8c24ec21e799ae1c210a2a01d14ad7ecc8
MD5 hash: caf066c4b6bf7905dfb085c281cffd49
humanhash: high-alaska-bakerloo-butter
File name:YP20210925.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:451'584 bytes
First seen:2021-10-19 08:54:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:KN8lQohSjIeTd9fGIf1H3Yq0mGy/u5tw:DlRKTfVpIqcUytw
Threatray 10'625 similar samples on MalwareBazaar
TLSH T137A4124513AC539AFDBA5BB64673081283B3BE379632F34D959A70D94F337804481AAF
File icon (PE):PE icon
dhash icon 0717033938001000 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/198438/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.17696.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the 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:
greyware keylogger obfuscated packed
Link:
https://www.filescan.io/uploads/616e87eedb358dd15ec36c72/reports/d013b421-889b-49c4-98e0-5834d04e5bc4/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/269cf24b-fb2c-405a-a6d6-01aaf90b30ed
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872964
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 505388 Sample: YP20210925.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 10 YP20210925.exe 7 2->10         started        process3 dnsIp4 41 192.168.2.1 unknown unknown 10->41 33 C:\Users\user\AppData\Roaming\UncQQycXJ.exe, PE32 10->33 dropped 35 C:\Users\user\AppData\Local\Temp\tmp88A.tmp, XML 10->35 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 10->61 63 Tries to detect virtualization through RDTSC time measurements 10->63 65 Injects a PE file into a foreign processes 10->65 15 YP20210925.exe 10->15         started        18 schtasks.exe 1 10->18         started        file5 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 37 allworklancer.com 162.241.217.72, 49806, 80 UNIFIEDLAYER-AS-1US United States 20->37 39 www.allworklancer.com 20->39 51 System process connects to network (likely due to code injection or exploit) 20->51 26 cmstp.exe 20->26         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 26->53 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-10-19 08:55:10 UTC
AV detection:
6 of 45 (13.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6nmnlevafgikrgn4jst4gwaekkjdps77vro4voz6py4rnj427o2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
Formbook
4a028b7f272dd96c75716d2268b551576a01ebccaca97bb19da43ec21dbe8514
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
76cd5f994be53f3f24e2b2018263b9ab582e84870ee8d24f38c6d11adae3688c
Formbook
92c90d735148f7fd056e2d53bf44239f3fdab6b029e78d3ed6077d9c7f40aef2
Formbook
972f5e016ffc306524d7083a5a5058ba8b5fc60f3db9f3c0915db59c0523a487
Formbook
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3
Formbook
+ 10'615 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cb2k rat spyware stealer trojan
Link:
https://tria.ge/reports/211019-kvg6qsfea2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.freegovphoneservice.com/cb2k/
Unpacked files
SH256 hash:
54b147c8a3e43303b25af1475549fdb5a1bba57835dbca9065cafffba2fe4b12
MD5 hash:
69f705df10c6a3c04a643b2143fb7e0e
SHA1 hash:
b19cd2c532773cbc1de484c4f36c0894e2906b19
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/cc15f996-017f-4ce4-af65-6b9d0d2953c3/
Parent samples :
d17dc5760a94c6a8d85b462dfe3cfdf40917e670513dadd5fd5eeaa9941106af
f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4
SH256 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
Link:
https://www.unpac.me/results/cc15f996-017f-4ce4-af65-6b9d0d2953c3/
SH256 hash:
8908e70a7d43c5953656def5863778544d566cf8f86b464780228a912b02fb4d
MD5 hash:
3b49fbd32481b444ab954ada7c4d7252
SHA1 hash:
34c9b4cba2e3000ead0a7eb3fe85292da93abd82
Link:
https://www.unpac.me/results/cc15f996-017f-4ce4-af65-6b9d0d2953c3/
SH256 hash:
f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4
MD5 hash:
caf066c4b6bf7905dfb085c281cffd49
SHA1 hash:
ea024a8c24ec21e799ae1c210a2a01d14ad7ecc8
Link:
https://www.unpac.me/results/cc15f996-017f-4ce4-af65-6b9d0d2953c3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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Rule name:pe_imphash
Create hunting rule
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 f358d592a02990a899bc4ca7c35804529237cbffac5dcabb3e7e3916a79afbb4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198438/

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