MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: 4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100
SHA3-384 hash: 932736bc09a0c5580938671098fd52058c28b7fc18a7b8ae99faa61ec396a69ecb0f65ddcfe68f35b5da0c4efd384bcb
SHA1 hash: 418777f39fc1386262ed8acbb44e29c9acdf3ce8
MD5 hash: e7c4bbbddf375ad7e071ab337f488101
humanhash: november-lake-princess-fix
File name:Citation-HEQ211025001T-EXPP v4,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:627'200 bytes
First seen:2021-11-24 13:24:55 UTC
Last seen:2021-11-24 14:55:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:EF0BL1yG0lb+tnskgubo7z+9xCh06ghVOoD71lyAKp:aIJ1tsJjh06QOuxlWp
Threatray 11'887 similar samples on MalwareBazaar
TLSH T1A3D4DF8034E9C1C7F97FCEB21CAAB5A411B8B9EDE089A0CFF585775A50B2351490D67C
File icon (PE):PE icon
dhash icon 8084a48cbc8ce4f8 (44 x Formbook, 20 x AveMariaRAT, 11 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Citation-HEQ211025001T-EXPP v4,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-11-24 13:27:24 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/3decb2c1-71cd-4a83-8db6-68e337d46419

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.YakbeexMSIL.ZZ4.4709.11577.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619e3d32f36138de3f39c98e/reports/5fbc319b-14e3-4511-97f2-291e8cb1d8de/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:
REMCOS
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b23b21fa-31e1-49cc-b797-d0be140e4674
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/895386
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
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 (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: 527863 Sample: Citation-HEQ211025001T-EXPP... Startdate: 24/11/2021 Architecture: WINDOWS Score: 100 31 www.myonchain.art 2->31 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 9 Citation-HEQ211025001T-EXPP v4,pdf.exe 3 2->9         started        signatures3 process4 file5 23 Citation-HEQ211025...EXPP v4,pdf.exe.log, ASCII 9->23 dropped 51 Injects a PE file into a foreign processes 9->51 13 Citation-HEQ211025001T-EXPP v4,pdf.exe 9->13         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.cindyrandband.com 74.206.228.78, 49821, 80 WEBAIR-INTERNETUS United States 16->25 27 www.badkyker.quest 37.123.118.150, 49820, 80 UK2NET-ASGB United Kingdom 16->27 29 16 other IPs or domains 16->29 33 System process connects to network (likely due to code injection or exploit) 16->33 35 Performs DNS queries to domains with low reputation 16->35 20 cmstp.exe 16->20         started        signatures11 process12 signatures13 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-11-24 11:42:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jlhfgmkxxfx7rsbszmy6qhll5nqg4p7e6y524bnzeo45kokgyeaa._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
08c2207b023f1d2e65be57b75a4395908b2474b1f244d8f53d43914f94b7be8d
Formbook
1bdc41058e53e885ccf81cf42ddac59733b6608f40719017dde98ac33ed8b8f5
Formbook
2e8dbbac127f620f64817f3674be70bb481ed70e89796f387caed0a11229540c
Formbook
4cef73e83df4c6bb091a157a975a38a2c50be436649414a2ac7a55bc62e67da0
Formbook
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
945e623b814b647326ed96bc5be37010053fdc50f9dce11d96e408c22a8afd4a
Formbook
99889ef9126eddb7fee40e181c9832c734f8cef74736e2c577438300b468751c
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
d544f115e860d3282bd996d7b12ac92c10097d68d135667cca0f847ca754f8ef
Formbook
e862c2495e79b33c27fd00a29dda3c22df6796ff8aa7fc6294216a46668f9047
Formbook
+ 11'877 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:b62n loader rat
Link:
https://tria.ge/reports/211124-qny4kafhe5/
Behaviour
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
Suspicious use of SetThreadContext
Blocklisted process makes network request
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.multidetoxhepatico.com/b62n/
Unpacked files
SH256 hash:
1bb5f92a9938fb8d6a97c1de80469a0ec325eecaee427122b09b248027a5e944
MD5 hash:
fbb2931f2e80c155c0d0ab7fc0d7ac4e
SHA1 hash:
9272b1b1b2974dccae8ce1c72db32df6cd96b919
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bedad108-157c-4157-8a23-f8edcfcc81c1/
Parent samples :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 hash:
6c037e881cbbe66210236eee14fe0f619aecdec8b8ae48cd3912a4fc3af41af5
MD5 hash:
81f22cc9290c155d6ba115a4ba81b4bf
SHA1 hash:
4a25e5265c42a8cb184b2af9a234a2ed1b950d8e
Link:
https://www.unpac.me/results/bedad108-157c-4157-8a23-f8edcfcc81c1/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/bedad108-157c-4157-8a23-f8edcfcc81c1/
SH256 hash:
4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100
MD5 hash:
e7c4bbbddf375ad7e071ab337f488101
SHA1 hash:
418777f39fc1386262ed8acbb44e29c9acdf3ce8
Link:
https://www.unpac.me/results/bedad108-157c-4157-8a23-f8edcfcc81c1/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4ace533157b9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100

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
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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.

Malspam

Formbook

Executable exe 4ace533157b96ff8c832cb31e81d6beb606e3fe4f63bae05b923b9d53946c100

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/208959/

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