MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c
SHA3-384 hash: b1186a22dc7434410ce636c3ffeea293dec90f2eaad9af40a4a63a25b92aaae98c49d3cecef1906ed89adec977910d3d
SHA1 hash: 51b6e8b12548944e92f3c7f3e7f36b33c4534e4a
MD5 hash: 5ad58c3a4b1b6f8d44e2601d82e5cba9
humanhash: high-cup-lion-helium
File name:K6QvKUIo0yyV0J8.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:940'032 bytes
First seen:2022-06-03 16:43:53 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 12288:mQgi5AaVcXIWsrOuztutY+hljXnajRkhE7DA5ecnFcOsZOYU6T4dzJmNeR6E60cI:wiuVX8O1Y+2RkhbLFcOsZnzOtmN
TLSH T1BA157B8839D466DEC49789F29D94FF10B62D381E835B8E47BE131648E81D1D28F352AF
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
448
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
K6QvKUIo0yyV0J8.exe
Verdict:
Malicious activity
Analysis date:
2022-06-03 16:45:58 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6f1e1981-9124-4da6-8a7c-8645c27a05b6

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/276567/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.3892.15954.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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/629a3a640003c05e7e99e473/reports/b53e8c77-3cd7-4614-b7f0-9570f196bc69/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/16038321-25dd-49bf-90ef-a455237decc4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1006460
Signature
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 or bat file
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 signatures2 2 Behavior Graph ID: 638952 Sample: K6QvKUIo0yyV0J8.exe Startdate: 03/06/2022 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 6 other signatures 2->39 10 K6QvKUIo0yyV0J8.exe 3 2->10         started        process3 file4 29 C:\Users\user\...\K6QvKUIo0yyV0J8.exe.log, ASCII 10->29 dropped 49 Tries to detect virtualization through RDTSC time measurements 10->49 51 Injects a PE file into a foreign processes 10->51 14 K6QvKUIo0yyV0J8.exe 10->14         started        signatures5 process6 signatures7 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 Queues an APC in another process (thread injection) 14->59 17 explorer.exe 14->17 injected process8 process9 19 chkdsk.exe 17->19         started        signatures10 41 Self deletion via cmd or bat file 19->41 43 Modifies the context of a thread in another process (thread injection) 19->43 45 Maps a DLL or memory area into another process 19->45 47 Tries to detect virtualization through RDTSC time measurements 19->47 22 explorer.exe 1 147 19->22         started        25 cmd.exe 1 19->25         started        process11 dnsIp12 31 192.168.2.1 unknown unknown 22->31 27 conhost.exe 25->27         started        process13
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-03 14:54:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l7rbvxehtn6enpuw323j5nktc3ipja2kaopbkh3x7dgtpf2lpgga._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:usps loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220603-t8sztsgcfp/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
cff04f25330da07fa60a88720273f3806dbbaf107ec634adbd9a26fec5adda68
MD5 hash:
51bce2cd04f98ceb38fcb4d3be5b05c1
SHA1 hash:
21ce391350d5e925252049c0e04c95252910bfb6
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/31dc98be-70a9-4c04-a90f-7555971c669e/
Parent samples :
a22ca7acaf7bfae77ff56f08b010ac618fb6ed2d6faddfc593b6f552c0e86f5b
3ab5efb42def342934ed461b4247037bb89eb0bb25fe12d33ac79f448aaf9eb7
2c0d3399664b5cde939a235ecd72cf708c48e8c7994eb2973b0d235aa475fbc7
5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c
SH256 hash:
b53f074417a9cc0a69e0a3b5bbba177e509c4ced6684cdcbb7ccdc78684bd1d7
MD5 hash:
7b54cb22959bd976b8d184eb6d90575c
SHA1 hash:
84775700a71a18d19026dc37250276181e767bdc
Link:
https://www.unpac.me/results/31dc98be-70a9-4c04-a90f-7555971c669e/
SH256 hash:
4facfc1fb372e082915014345275d0baa10bb4e5b69504ef1215713739abf5c6
MD5 hash:
bc6671966d15f616933ffa8a7754c7bc
SHA1 hash:
2026227ba740b6083532a07eca9110b73a3d8ff6
Link:
https://www.unpac.me/results/31dc98be-70a9-4c04-a90f-7555971c669e/
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
Link:
https://www.unpac.me/results/31dc98be-70a9-4c04-a90f-7555971c669e/
SH256 hash:
5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c
MD5 hash:
5ad58c3a4b1b6f8d44e2601d82e5cba9
SHA1 hash:
51b6e8b12548944e92f3c7f3e7f36b33c4534e4a
Link:
https://www.unpac.me/results/31dc98be-70a9-4c04-a90f-7555971c669e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5fe21adc879b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/5fe21adc879b7c46be96deb69eb55316d0f4834a039e151f77f8cd37974b798c

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/276567/

Comments