MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab
SHA3-384 hash: 61a84c3dacc27144e5d89ebb6752b6e3d4fcc7a3fe307ca7345d0e19f697499ed8717a8bbfff76aa66b73a4e501fb6ec
SHA1 hash: 70ec5402777057c0ac6cab40698380812341e325
MD5 hash: d85362ebed4b1ec73421fcad1b1ad03d
humanhash: rugby-spring-fillet-black
File name:d85362ebed4b1ec73421fcad1b1ad03d
Download: download sample
Signature Formbook
Create hunting rule
File size:962'048 bytes
First seen:2022-12-08 02:34:28 UTC
Last seen:2023-01-05 14:32:43 UTC
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:ccr2iNUY4IWGjCRqCLg883vVB6l+Gjg34eYJPLByqzNMP1gURVrDJnR6haKnlUvV:3r1ONGjU3LgT//m9jgoeiLBI
TLSH T1C615F62F4ED755D4EE3747F472459BB83DA27B81A8611C096CA0B07300BC53EAB3EA65
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d85362ebed4b1ec73421fcad1b1ad03d
Verdict:
No threats detected
Analysis date:
2022-12-08 02:34:48 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ed01a072-fc74-4344-b7ad-0668f62e2318

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/344181/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.48217.UNOFFICIAL
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SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63914d589a505ad9423dfe7e/reports/bd094b80-6d48-457e-a162-7071ebf840c4/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/fb6c5677-af2f-41f1-88c5-86209e3096fa
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1130433
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 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: 763156 Sample: ess5ZrRgvE.exe Startdate: 08/12/2022 Architecture: WINDOWS Score: 100 27 www.re-curve.tech 2->27 33 Malicious sample detected (through community Yara rule) 2->33 35 Antivirus detection for URL or domain 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 6 other signatures 2->39 9 ess5ZrRgvE.exe 3 2->9         started        signatures3 process4 file5 25 C:\Users\user\AppData\...\ess5ZrRgvE.exe.log, ASCII 9->25 dropped 51 Injects a PE file into a foreign processes 9->51 13 ess5ZrRgvE.exe 9->13         started        16 ess5ZrRgvE.exe 9->16         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 18 explorer.exe 13->18 injected process9 dnsIp10 29 www.rustfriebergh.com 46.30.211.38, 49708, 49709, 80 ONECOMDK Denmark 18->29 31 www.700co.com 154.39.162.206, 49707, 80 COGENT-174US United States 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 chkdsk.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Deletes itself after installation 22->47 49 2 other signatures 22->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3sm5mjvtnyjmoc6lorodw6eu5wt5pv6hrcly5nn2c67mughjswvq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:w086 rat spyware stealer trojan
Link:
https://tria.ge/reports/221208-c21bwsbg7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/588bc245-aa13-4cf0-88fc-9200407667e8
Unpacked files
SH256 hash:
d46c34f0a0c5bf4316730eba075ac8cc8b78fa9843e86641e53c260caecbb959
MD5 hash:
05f74a08c86c90a8b96039ef8f63ccbb
SHA1 hash:
f7b111ee1c9a3df7a894b1ec6d450aea9b0695fe
Detections:
XLoader
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
Parent samples :
502eb45094080794e04e0db85d0a1844f268407bd310d5a631fd185eab11b39e
893f2dfd5758eb6fd8a7c8d9a6e83bc28ef165be2ef52c9a3ef4124f25dcd661
268552c2ffe8fbb6b8a2244ce2931ca115a4057d74bfb72fc7ba91b95d95ac63
dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab
91fc06743f28fe6510f6e23c02532b67519f6bdc4ab6f93c0aa14abb8225d60e
98bf2d56d6648be19d20e78cc7f006b4ef48c5627c2e9ce70539b5a51fc9e5ad
SH256 hash:
2338186284297f25351ddc123d8046efc9b7d4cbac65172319fa72e2351005c7
MD5 hash:
09e865319428d4a49f353bde5fad3ab5
SHA1 hash:
dd5e7bf688d69a0d5995985a5690639029f0d52e
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
SH256 hash:
3624268b1bf67fd3f560f345e5171f3a2f8968a776c23816ea76fc0ef41b0f03
MD5 hash:
1619753b625e58c25b73fbf1f0bff482
SHA1 hash:
c0d7922bdbc10ef0ee1606a40c2dedd22cb180d4
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
SH256 hash:
d4348c991962df1568a616a3e4928c1878d67283ca2f60a73b28bffa1281c4c7
MD5 hash:
a8fcac6685d484fa2359c81dcc500585
SHA1 hash:
963385ef2d2540935e703e2a43294c4917dd3e52
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
SH256 hash:
519fb8c09ab02733ab99628f59b59708366d83bdff3661d42f24d24dd8f829d2
MD5 hash:
4b2aae59eac958302faf739d4c4a4920
SHA1 hash:
6dd149af68fa236533c4187d9d96d36dee1f71b6
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
SH256 hash:
dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab
MD5 hash:
d85362ebed4b1ec73421fcad1b1ad03d
SHA1 hash:
70ec5402777057c0ac6cab40698380812341e325
Link:
https://www.unpac.me/results/10dc19d4-ee10-47c8-b463-a35c56b655b9/
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/dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab

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: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 dc99d626b36e12c70bcb745c3b7894eda7d7d7c788978eb5ba17beca18e995ab

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/344181/
  
URLhaus
https://urlhaus.abuse.ch/url/2259317/

Comments


Avatar
zbet commented on 2022-12-08 02:34:38 UTC

url : hxxp://208.67.105.179/governorzx.exe