MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
SHA3-384 hash: cec493a5f4d934b4d2ebda1e050f6f08b1209d3451f344975a0349884bf3b40571c7b912a5892110de4f44ca38a57448
SHA1 hash: 96ecf27fd10a6663cbfaadb7643abeaf4061ea77
MD5 hash: 6040407905ea1aa24dd58dc8befa4255
humanhash: jig-tango-lion-chicken
File name:6040407905ea1aa24dd58dc8befa4255
Download: download sample
Signature Formbook
Create hunting rule
File size:698'880 bytes
First seen:2021-10-13 11:35:22 UTC
Last seen:2021-10-13 13:59:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:hSBIB+gqzVl16yDr67jAkWoDq5jAyWb3PnB5JRU/V18H:sBVVmEJaqdAtj/RRGV
Threatray 10'494 similar samples on MalwareBazaar
TLSH T1C1E4BF4167135E0DEB528BB680AC50F452E9BC1FEC7AEB2D1E943114C7B6DD224B287B
File icon (PE):PE icon
dhash icon c4e0ecfcc0c8f4cc (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6040407905ea1aa24dd58dc8befa4255
Verdict:
Suspicious activity
Analysis date:
2021-10-13 11:49:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bbf6c19a-9cab-415a-a6de-70c32b937f92

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/197202/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.27772.23398.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a 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:
obfuscated packed
Link:
https://www.filescan.io/uploads/6166c4a5fd35fe780c3d184f/reports/68aa2836-98b9-4c12-9aff-6f989849eb6c/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/4819f51c-42d8-4392-8f70-9d20d75dd540
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/869565
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 delete
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 signatures2 2 Behavior Graph ID: 501991 Sample: iAuPyHuUkk Startdate: 13/10/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 7 other signatures 2->44 10 iAuPyHuUkk.exe 6 2->10         started        process3 file4 30 C:\Users\user\AppData\...\iAuPyHuUkk.exe.log, ASCII 10->30 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 14 iAuPyHuUkk.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.cyebang.com 154.216.110.149, 49827, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 17->32 34 www.xn--aprendes-espaol-brb.com 217.160.0.226, 49826, 80 ONEANDONE-ASBrauerstrasse48DE Germany 17->34 36 5 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 21 control.exe 17->21         started        24 autofmt.exe 17->24         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2021-10-13 10:17:12 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ef7e1f834d6901fe15bcdbf1c35bb858b921e959d233065277a1457bd72549d
Formbook
4dc95a3bcf000bee17c567dcb6047c2e523641ad704f6e677421e817440c51f4
Formbook
67c2d1838c17151b34861887e15359c92dad555ce861d809b2f7cd9688e4455c
Formbook
6ffe756ce71f1457d7dd480357f3545f123b750fc4bf30683b59887d491948a7
Formbook
90e1eac40edda005fffadbb1d16c652d16e685f8f4cf7375eb6ac928222c3a1c
Formbook
96a54086e0d1667ed27dacd61ce88129d2ae1236718babe4ee5b3054385cc215
Formbook
affea9c276ded88eea1e39ac39fb19373c4b62d4251fb1d06f37a05e35dfa463
Formbook
c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04
Formbook
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
Formbook
f5447c22561c0692e385ef3c0ef0ed84d4ce35042f0839bddd7de9aeaa1f777a
Formbook
+ 10'484 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:mexq loader rat
Link:
https://tria.ge/reports/211013-nqkmvadghl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.aliexpress-br.com/mexq/
Unpacked files
SH256 hash:
cdcc0861e8b5470d5a925f716b26ddce9fef3bf46940b9bbbbdfe73c3a213d2d
MD5 hash:
100ab8d220e44515f3991b41a16f772c
SHA1 hash:
7bb1b8da84e68add74bf652f9bdb5f91a7d2d98f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d19290c1-c767-4b4b-936d-f5fd11b89379/
Parent samples :
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
9c9a99423087bdfd23df04a29984273ba056021ee54e815d2cd85103a9548eff
04ed65784009bd39c546c4a6473a44799d0444d40ff9796c2921a70db6ec2a72
0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef
SH256 hash:
d3aad927403c10e0eb1e8404f7ab502a273ef1298366a8b835d322e6945b5aa1
MD5 hash:
c26f1bd070ae03d96a88cc02e76e4e3b
SHA1 hash:
4e1ccbc2e233262dc03724cdc003eae893c45d68
Link:
https://www.unpac.me/results/d19290c1-c767-4b4b-936d-f5fd11b89379/
SH256 hash:
eda4d687b865aed0078ab87078de7d9722888b2d2af71c6fc0dcdc986ffb7567
MD5 hash:
12cf5402be16590c300b442a66e9ebc1
SHA1 hash:
0ea28394d301ca1ce840f039d2da62a5ce6d9334
Link:
https://www.unpac.me/results/d19290c1-c767-4b4b-936d-f5fd11b89379/
SH256 hash:
2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
MD5 hash:
6040407905ea1aa24dd58dc8befa4255
SHA1 hash:
96ecf27fd10a6663cbfaadb7643abeaf4061ea77
Link:
https://www.unpac.me/results/d19290c1-c767-4b4b-936d-f5fd11b89379/
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/2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362

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: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 2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1673726/
Cape
Cape
https://www.capesandbox.com/analysis/197202/

Comments


Avatar
zbet commented on 2021-10-13 11:35:23 UTC

url : hxxp://13.92.100.208/toss/image.exe