MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de. 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 2 File information Comments
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SHA256 hash: 425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de
SHA3-384 hash: 6cc70f62552662efe2ae94393136ec808b9e5d1bd303ac48b7eb823626d1eb9e385f0a136f2bbb534400a052d9df5c99
SHA1 hash: ff31a2d5284d43b4f2ffd27594bddf8352db3149
MD5 hash: bb040b47d2f6f564bb5fdb59ff610ced
humanhash: cola-florida-jersey-east
File name:KONUgynwW37Tb1K.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:407'552 bytes
First seen:2022-01-17 18:33:50 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:Ikgr0v2S/sB542+o6zU3tcnsGnHqskRRRRREROK1:IkwS2ZB5J9ysELkRRRRRER
Threatray 12'847 similar samples on MalwareBazaar
TLSH T1D584E1587A90F0EEC56B8FBA8AA07D246A217A635307D307A107159DDB0E7D78F017B3
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
KONUgynwW37Tb1K.exe
Verdict:
Malicious activity
Analysis date:
2022-01-17 18:44:37 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f3377ec8-d987-4dc4-b88b-d2262a1dbf57

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/219903/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61e5b6a4d32385db63fca428/reports/2cf9e8ab-47be-4bb4-a518-23d9b307c982/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/36078352-fd65-4fcb-96fa-b0e597fce0e3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/921969
Signature
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 554447 Sample: KONUgynwW37Tb1K.exe Startdate: 17/01/2022 Architecture: WINDOWS Score: 100 33 yacusi.com 2->33 35 www.yacusi.com 2->35 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 11 KONUgynwW37Tb1K.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\KONUgynwW37Tb1K.exe.log, ASCII 11->31 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 15 KONUgynwW37Tb1K.exe 11->15         started        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 18 explorer.exe 15->18 injected process9 dnsIp10 37 alonetogetherentertainment.com 162.241.216.92, 49801, 80 UNIFIEDLAYER-AS-1US United States 18->37 39 sunrisespaandbodywork.com 173.254.20.92, 49829, 80 UNIFIEDLAYER-AS-1US United States 18->39 41 13 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 svchost.exe 18->22         started        25 autofmt.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:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-17 18:34:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ijpvaa5jdupmz3jj2ts2k5dia3ilpvouuobtye5yqz32hqt6wdpa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
204831bda7d04f0905f7bf0c39e45b3772935726d8a436ee9703a19098b37e21
Formbook
36b986f7d277f114be1166140b08a4ddb6300274d6365ea589fe129105445de7
Formbook
400558d78a7f45c87f3e0376dd0082f6df8dc35a4e547b2c8bdd44a01f978a65
Formbook
a1d8420052bbdcaf3d318427bfe57edf5cc330fb14aaa5f4a597fac220c2a6de
Formbook
a7aeae9d2c1e1914881ef9c39ae9801c9bc757c58f1bfaeed11957cdc7920a7e
Formbook
c3096cfa6809f117e6d9d1011c57a91ab81055d92ff3348c51c47ceed7e330bc
Formbook
d36d73e78b048c34b8ed4b2c1035f27c0c1857ae8eb5f1167942981139138b35
Formbook
d89ceaf1e34dd42cef063ecb6b8e219479f276c6cc30e2ab6ae8c881a8d60633
Formbook
+ 12'837 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:cbgo loader rat suricata
Link:
https://tria.ge/reports/220117-w7sc1scbfj/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
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:
ceb6a86d334fc6a15bcc80c7f78605d4d753d107f9a87cac9617f05e1a0451d3
MD5 hash:
178c97c45bf7a9f78755b58266746dd8
SHA1 hash:
422e21dbcce796c016b6c56c14e0c11db9fa7683
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a8c61dfe-c475-4731-a41d-69b75a0e1eab/
Parent samples :
425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de
f79592d7f8ba73cf16c31b3ac92427cdf99789a3eece4c873d0522b3429a783f
72417f2e53964171cecc3819ad3033955ef54b7eb0d7cb542fe089d4f19c5f5d
9689e8e0cf51b8b5c98ddb007636d8acf7e03c9cc8a7bf99aafdaaebae2dfb3a
cfde328feb2bab7e7d8c42f5c1e679b49db27f5a4f469ef189c132d07ef211f6
e001e6df4c7f72792f62e8a6c85f7061589071eae796aff8c96343a25b9641f8
b88f9f5f1944a3f2d0f7586fcdb3b3262bfb979e3fbc3364b306067cc6d5f38e
SH256 hash:
d933cdf7f824881ac6d976f49c1b84990a6b249dc6ed46bfe694cd8ae67aa96c
MD5 hash:
af2de56954e08c0350fa37d1356cfc42
SHA1 hash:
f1a3945a2a1f58ee282f0d17782a82a12c909aa9
Link:
https://www.unpac.me/results/a8c61dfe-c475-4731-a41d-69b75a0e1eab/
SH256 hash:
180456dd6d93dc19f9e0eb5a1d16cdef80da500822eef73c068b9c4754def689
MD5 hash:
7fa5b555f8eb4aab2aa3b7a18cb6c0a5
SHA1 hash:
bcecb3829c8c9740c7c8c21e89f074a54564e3a7
Link:
https://www.unpac.me/results/a8c61dfe-c475-4731-a41d-69b75a0e1eab/
SH256 hash:
425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de
MD5 hash:
bb040b47d2f6f564bb5fdb59ff610ced
SHA1 hash:
ff31a2d5284d43b4f2ffd27594bddf8352db3149
Link:
https://www.unpac.me/results/a8c61dfe-c475-4731-a41d-69b75a0e1eab/
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/425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de

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
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.

Cape
Cape
https://www.capesandbox.com/analysis/219903/

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