MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea
SHA3-384 hash: 281e182f212c67fd3d1eca32e749e2d962bedb8b78cef77bf5a7d82fb2b90e9bae77642c4baefcfbd3ed699ab18975ab
SHA1 hash: a403483a4993d2fb29dafa93232396c18936dc8d
MD5 hash: 1935f5a6fcc5915d4b46c6d0abbdf71e
humanhash: uncle-october-violet-mountain
File name:1935f5a6fcc5915d4b46c6d0abbdf71e
Download: download sample
Signature Formbook
Create hunting rule
File size:765'440 bytes
First seen:2022-02-08 02:28:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:LqIg9/Rqv6s7ahXOfHWsRt5NP9x1prpBdi5i9yyxz3Y4FZk+pvlB9:0n8vmXOfnt5jrGy24FZv79
Threatray 13'141 similar samples on MalwareBazaar
TLSH T1AFF4CE3C69BD263BC1BAC779CAC5D433F05069A77211BEA488D713664346B9678C233E
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1935f5a6fcc5915d4b46c6d0abbdf71e
Verdict:
Malicious activity
Analysis date:
2022-02-08 02:56:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/561d0dc3-a114-4b22-a860-e9554e0b0a94

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/237448/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn34.27392.26578.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6201d574c79b424d7206ff44/reports/d5cc3af1-5177-40b0-a460-a33e7cebf32b/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/60435c92-a194-41ef-ad43-470dc387947d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/935715
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
Benign windows process drops PE files
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)
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
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 568192 Sample: H2D7qt2WPR Startdate: 08/02/2022 Architecture: WINDOWS Score: 100 48 www.bx5rentals.com 2->48 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 10 other signatures 2->64 11 H2D7qt2WPR.exe 3 2->11         started        signatures3 process4 file5 46 C:\Users\user\AppData\...\H2D7qt2WPR.exe.log, ASCII 11->46 dropped 80 Tries to detect virtualization through RDTSC time measurements 11->80 82 Injects a PE file into a foreign processes 11->82 15 H2D7qt2WPR.exe 11->15         started        signatures6 process7 signatures8 84 Modifies the context of a thread in another process (thread injection) 15->84 86 Maps a DLL or memory area into another process 15->86 88 Sample uses process hollowing technique 15->88 90 Queues an APC in another process (thread injection) 15->90 18 explorer.exe 3 6 15->18 injected process9 dnsIp10 50 104.21.54.53, 49830, 80 CLOUDFLARENETUS United States 18->50 52 www.buresdx.com 66.29.154.157, 49834, 80 ADVANTAGECOMUS United States 18->52 54 27 other IPs or domains 18->54 44 C:\Users\user\AppData\Local\...\zlruzgldx.exe, PE32 18->44 dropped 66 System process connects to network (likely due to code injection or exploit) 18->66 68 Benign windows process drops PE files 18->68 70 Performs DNS queries to domains with low reputation 18->70 23 rundll32.exe 1 12 18->23         started        26 zlruzgldx.exe 2 18->26         started        29 zlruzgldx.exe 18->29         started        file11 signatures12 process13 dnsIp14 72 Tries to steal Mail credentials (via file / registry access) 23->72 74 Self deletion via cmd delete 23->74 76 Tries to harvest and steal browser information (history, passwords, etc) 23->76 78 3 other signatures 23->78 31 cmd.exe 2 23->31         started        34 cmd.exe 1 23->34         started        56 192.168.2.1 unknown unknown 26->56 36 zlruzgldx.exe 26->36         started        38 zlruzgldx.exe 26->38         started        signatures15 process16 signatures17 92 Tries to harvest and steal browser information (history, passwords, etc) 31->92 40 conhost.exe 31->40         started        42 conhost.exe 34->42         started        process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-08 02:29:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
34fc8a270fda2856448cb455e3dca4d8210f5e83f25f1fa8339d8f428a449466
Formbook
4d1ac5962b58c0bf6386b85fc1c2029efb0c8d5ccf0054733795eec1ea8b3291
Formbook
57db8a6dc112c8d4b4202ba07774edf9bf54fdafd6fe11bd8d0e7ae328fcc369
Formbook
703f4546b4adc3e685275a9840bafac150717c3259f629f6bf9bd8e5d191ad46
Formbook
7c7116c6a0f1e06e4c252ea45668b85c1fdf3f35216097be1208e14be4066b36
Formbook
9de751536a55984df4e0686ff47bbe5553906d4b2e2559d7afc019fcb7d4eb4a
Formbook
a42b3919356aa815980faeac0fc6222bd4a2d6f6cc5bdc01c5a5f55014a9c66e
Formbook
dc65156bfa6da463f9eb980c3a551ba0cd494b53a55b3a2e9b41c766ca3c011c
Formbook
f777ad0feb1db2da7abb7c793515f7af49d06a7b4fc5904a9da436ccbd59ddc3
Formbook
ff3f7736a06e89ae300270369d83b922423c8a840903b30a8a21365c4b0b0628
Formbook
+ 13'131 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:u6f8 loader rat
Link:
https://tria.ge/reports/220208-cykr2acbgj/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
b07d3dcdefb94e7128b70592afbc972d2254d398c656a21010c8c1bbfe25da18
MD5 hash:
bf79ed81dd65aa0db236b4802a28828c
SHA1 hash:
1b7ea39dbeb6f1c7ffe1d419dc91b38017d191e4
Link:
https://www.unpac.me/results/c349400a-2e91-4c0c-9933-b20bcd903cab/
SH256 hash:
0cc119786b104cf0aa261a208bf38802b339774ff3d7a42afcd8329d2d7d21c9
MD5 hash:
263b5190f7ac42d83c756dcdf38147bb
SHA1 hash:
78f419fe3936ed7d603706c47230cd3e6ff79ffe
Link:
https://www.unpac.me/results/c349400a-2e91-4c0c-9933-b20bcd903cab/
SH256 hash:
ea838e0384811cc8fe8b402800db2c4e6d245b8fa7e19be75598b1acfcaf8e27
MD5 hash:
fbc09d4966f3efeaa13409622e7de925
SHA1 hash:
6181388dbff60fe021269c931054283129e99010
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c349400a-2e91-4c0c-9933-b20bcd903cab/
Parent samples :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 hash:
acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea
MD5 hash:
1935f5a6fcc5915d4b46c6d0abbdf71e
SHA1 hash:
a403483a4993d2fb29dafa93232396c18936dc8d
Link:
https://www.unpac.me/results/c349400a-2e91-4c0c-9933-b20bcd903cab/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/acb28239c256/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/237448/
  
URLhaus
https://urlhaus.abuse.ch/url/2035729/

Comments


Avatar
zbet commented on 2022-02-08 02:28:56 UTC

url : hxxp://basbeigium.com/PFI09477488.exe