MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd
SHA3-384 hash: 52a0ceace21f22f44334ab78807bd2fd38bd8f5ef5f218148e762661e5e0f12a5ff9a174380b098ed8cca5785a511963
SHA1 hash: 64ed3c36ef49e33520ba68649a0fa1556fa400b1
MD5 hash: 75cef7a355873409f7bc1d9bc7a6bfd4
humanhash: ink-arkansas-jupiter-eleven
File name:75cef7a355873409f7bc1d9bc7a6bfd4
Download: download sample
Signature Formbook
Create hunting rule
File size:527'872 bytes
First seen:2022-04-29 14:42:49 UTC
Last seen:2022-04-29 15:32:19 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:G06Uk+oY6Zv9OAu/w7NsQK+vdLP1XrV9/Z:G0h6ZQtIjKerd
Threatray 12'189 similar samples on MalwareBazaar
TLSH T12EB4F158B2BBC902C2A80733C1E79A0403B59B45D263FB4B37E556ED5D133AB4E453A7
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
75cef7a355873409f7bc1d9bc7a6bfd4
Verdict:
Malicious activity
Analysis date:
2022-04-29 14:50:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f2d49834-6943-4073-a91b-e63212dbf631

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/267839/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.24875.4139.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a process with a hidden window
Launching a process
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe greyware obfuscated packed
Link:
https://www.filescan.io/uploads/626bf9772b32b1c37c7208cf/reports/471f738f-7ec5-41a1-8efb-e2ca374d6823/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/28346d50-1a2c-401d-9275-02469ec82157
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/985557
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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: 618049 Sample: tjAWVBvXzq Startdate: 29/04/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 10 other signatures 2->50 8 tjAWVBvXzq.exe 7 2->8         started        process3 file4 30 C:\Users\user\AppData\Roaming\klxoqsv.exe, PE32 8->30 dropped 32 C:\Users\user\...\klxoqsv.exe:Zone.Identifier, ASCII 8->32 dropped 34 C:\Users\user\AppData\Local\...\tmpAAEC.tmp, XML 8->34 dropped 36 C:\Users\user\AppData\...\tjAWVBvXzq.exe.log, ASCII 8->36 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 8->56 58 Adds a directory exclusion to Windows Defender 8->58 60 Tries to detect virtualization through RDTSC time measurements 8->60 62 Injects a PE file into a foreign processes 8->62 12 tjAWVBvXzq.exe 8->12         started        15 powershell.exe 25 8->15         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 70 Modifies the context of a thread in another process (thread injection) 12->70 72 Maps a DLL or memory area into another process 12->72 74 Sample uses process hollowing technique 12->74 76 Queues an APC in another process (thread injection) 12->76 19 explorer.exe 12->19 injected 23 conhost.exe 15->23         started        25 conhost.exe 17->25         started        process8 dnsIp9 38 www.veganes-eis.info 217.160.0.64, 49813, 80 ONEANDONE-ASBrauerstrasse48DE Germany 19->38 40 www.bkulp.com 142.252.247.120, 80 EGIHOSTINGUS United States 19->40 42 4 other IPs or domains 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 54 Performs DNS queries to domains with low reputation 19->54 27 svchost.exe 19->27         started        signatures10 process11 signatures12 64 Modifies the context of a thread in another process (thread injection) 27->64 66 Maps a DLL or memory area into another process 27->66 68 Tries to detect virtualization through RDTSC time measurements 27->68
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-29 12:22:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mfkf63ufx6yoxnwgljjnken4bh46xdyx6qptap6eakf7xrvdgpoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2e84d64eef0d8e78d17e8d286eeff95f97abe0048a66175e5e05d1fc31b0c5d4
Formbook
3fbed13bf271b55a9eca7fe2e7ec051fb9e4b02ace3dce84468b1acb57962fb4
Formbook
66972078954fd71e073a89c4106dcd4a2bfa4f3ed89ab2ec638f0ba81c9bed30
Formbook
95c6926c4af01e7a782b16967a66b3c349f24a6ab2393b1a20c47e28a1ad7249
Formbook
ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83
Formbook
c0e6b0b4e80d36f0872fe01ed20cc5a6d17083f6d11ff93cc5ccc841dd43aa33
Formbook
e07c12a4c17554763b40b0ca410493875bbdd907bc8ba261a732d935e015f852
Formbook
e23f9ca1ce688d9883147d54508d94d1833616df218f6b1ee1e5ba9ff324abf0
Formbook
+ 12'179 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n6g4 loader rat
Link:
https://tria.ge/reports/220429-r3kedsffhp/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
CustAttr .NET packer
Xloader Payload
Xloader
Unpacked files
SH256 hash:
b342c4baa8ca605975c1c507410a75ee035638472f709904aa13e3f3a6b652a4
MD5 hash:
78fddf5431df0b07dfb2b813ab0a4d85
SHA1 hash:
ab173916059bce1b80dec4e669fd8258c876f81a
Link:
https://www.unpac.me/results/358ec16e-88d7-4317-a526-fc5784b6bbfc/
SH256 hash:
37c34909a98ed476d2f80f335a48a86e72e0e382372952a2f29a3e604005327f
MD5 hash:
fdc7951ca27ac69f1c8eb72253c2a4c5
SHA1 hash:
b27055dd2ff5ec2964dc9fc449fcf904bfe7b9b8
Link:
https://www.unpac.me/results/358ec16e-88d7-4317-a526-fc5784b6bbfc/
SH256 hash:
b0aaf5131cd40c7e2595f9ba94dd68d51f22981a88edfcfcf862f71bb78ae783
MD5 hash:
5170d50c67b83f0f35981e824a1c9778
SHA1 hash:
bc0b85ff475af189b51bb9d074f201634caae75a
Link:
https://www.unpac.me/results/358ec16e-88d7-4317-a526-fc5784b6bbfc/
SH256 hash:
2dde4b043ba690c6a7e1aab0518df6f229f2441b3ca2cfd2c662b5523e5782b0
MD5 hash:
31cdf11ba11ff508633f5f5440ad4a45
SHA1 hash:
1f1195b82cead3e8659438fcb781886db958fa9d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/358ec16e-88d7-4317-a526-fc5784b6bbfc/
Parent samples :
1f74a34a965bb67c02e8f7a733d7d5f98b1b88e11a7816c29934a6a073e662f2
3fbed13bf271b55a9eca7fe2e7ec051fb9e4b02ace3dce84468b1acb57962fb4
69cdb8718955325126a19a236de13ef83b27941b518dd43987d8fbed3ffe9d30
e23f9ca1ce688d9883147d54508d94d1833616df218f6b1ee1e5ba9ff324abf0
232413f73e7b46e00ccf36baf862343989068f3d7271a8c6e037d43b6a497d64
2e84d64eef0d8e78d17e8d286eeff95f97abe0048a66175e5e05d1fc31b0c5d4
61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd
edadbe7cf0557fdede01500da1d161ceeac3fadd16760f325da7938d25cf2b6e
bcd57fcb786185b2c8c6acf1f9d0182d06caae28fc6930ced2fcd5a9c81a96fa
f10110817fa77d6bea276c3d4ee43729d9889e760fa6ce503664613a1d5526da
ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7
SH256 hash:
61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd
MD5 hash:
75cef7a355873409f7bc1d9bc7a6bfd4
SHA1 hash:
64ed3c36ef49e33520ba68649a0fa1556fa400b1
Link:
https://www.unpac.me/results/358ec16e-88d7-4317-a526-fc5784b6bbfc/
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/61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd

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.

Web download

Formbook

Executable exe 61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2171239/
Cape
Cape
https://www.capesandbox.com/analysis/267839/

Comments


Avatar
zbet commented on 2022-04-29 14:42:56 UTC

url : hxxp://198.12.110.173/51/vbc.exe