MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7
SHA3-384 hash: 2c79e36676a78f04c809bc602173533aeb3b2f86bf8c6c6c99e1f51f294e104641bd5ff71024b1a1c728cf7308c64c56
SHA1 hash: 5b9719b6e42579c2b0f2922872f97bf880f98721
MD5 hash: 3e16828f9b86c29be606f9e88ee5489d
humanhash: zebra-kilo-timing-monkey
File name:3e16828f9b86c29be606f9e88ee5489d
Download: download sample
Signature Formbook
Create hunting rule
File size:1'613'824 bytes
First seen:2022-05-02 19:11:27 UTC
Last seen:2022-05-02 19:39:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:okPFcFPGMzTO9Vqu1DE8gXb8NuuaWw0G4Py/FOr6cCDmg3:dFc1Gii1D3gXwNuuqtOr6f
Threatray 13'371 similar samples on MalwareBazaar
TLSH T150758D9D711071EFC857E4F2DA681C64AA217C7B531B4603903739AEAA7D987CF180FA
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
662
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
bank-swift-02-05-2022.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-02 18:43:49 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/9e793046-8d42-4711-b2e0-8dc7ac474916

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/268277/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39599815.17478.12131.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/62702d0f8d02701a7e951db3/reports/05a8346d-d347-4134-92f2-6e8fed7dd2f9/overview
Result
Verdict:
MALICIOUS
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/e23586f2-11e6-4e18-8877-b604df72059c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/986714
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
PE file contains section with special chars
PE file has nameless sections
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 dnsIp2 2 Behavior Graph ID: 619206 Sample: Uaw4yPh128 Startdate: 02/05/2022 Architecture: WINDOWS Score: 100 39 yourhockeyskates.com 2->39 41 www.yourhockeyskates.com 2->41 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 11 other signatures 2->55 9 Uaw4yPh128.exe 7 2->9         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\QJVbgcqbJIz.exe, PE32 9->31 dropped 33 C:\Users\...\QJVbgcqbJIz.exe:Zone.Identifier, ASCII 9->33 dropped 35 C:\Users\user\AppData\Local\...\tmp1C41.tmp, XML 9->35 dropped 37 C:\Users\user\AppData\...\Uaw4yPh128.exe.log, ASCII 9->37 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 9->61 63 Adds a directory exclusion to Windows Defender 9->63 65 Tries to detect virtualization through RDTSC time measurements 9->65 67 2 other signatures 9->67 13 Uaw4yPh128.exe 9->13         started        16 powershell.exe 22 9->16         started        18 schtasks.exe 1 9->18         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 13->75 77 Maps a DLL or memory area into another process 13->77 79 Sample uses process hollowing technique 13->79 81 Queues an APC in another process (thread injection) 13->81 20 explorer.exe 13->20 injected 24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        process9 dnsIp10 43 www.addesbarst.quest 37.123.118.150, 49783, 80 UK2NET-ASGB United Kingdom 20->43 45 www.bocafoods.net 209.99.40.222, 49785, 80 CONFLUENCE-NETWORK-INCVG United States 20->45 47 9 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 59 Performs DNS queries to domains with low reputation 20->59 28 explorer.exe 20->28         started        signatures11 process12 signatures13 69 Modifies the context of a thread in another process (thread injection) 28->69 71 Maps a DLL or memory area into another process 28->71 73 Tries to detect virtualization through RDTSC time measurements 28->73
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-02 08:57:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
62
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=55pe6qinhtpk43ootfwbhsbwzlbrdazh2u7tmssup2vbfvhsyltq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3fbed13bf271b55a9eca7fe2e7ec051fb9e4b02ace3dce84468b1acb57962fb4
Formbook
5a6ac40a3c393c4a3feff2030b34b6493215f0e855588f585fdb768529a3deae
Formbook
6ff40b2ed84520e3135881c7a31a49f2a0952e1ed7a9739527b1619bcb6ec8f8
Formbook
73ef486f00e7b911bc1101d2e0eb3f8a23daf374a09dfdd81f03ccfae5106a29
Formbook
a3d145e3c72db7ea3e18a306410a0445222a8ce83235794dc404dd470843caf2
Formbook
e23f9ca1ce688d9883147d54508d94d1833616df218f6b1ee1e5ba9ff324abf0
Formbook
e932695b2e7c04d9e57d7e5e0f3e928898621bcc8657c9d3203b9383c640a325
Formbook
+ 13'361 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/220502-xwg9caggbp/
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
Xloader Payload
Xloader
Unpacked files
SH256 hash:
b17880fedd9e22462be47c2feeafaf16af9d1638c4e3c982cbfec76b9af0452c
MD5 hash:
431af9c84069d49347bfda0e6b674e4e
SHA1 hash:
005362d4623f18f67588cd038cdfbe25c61eb63f
Link:
https://www.unpac.me/results/479d9429-701d-4033-9a08-f7efe5922584/
SH256 hash:
338e29a6b4ad47cc207ccec75aa8d144bd638f2f8fb05750883489f7476ba4c7
MD5 hash:
17f8feaff48fce4fc518b83afea16651
SHA1 hash:
70477523115ed9e8e984d5743711d290c2a0f46e
Link:
https://www.unpac.me/results/479d9429-701d-4033-9a08-f7efe5922584/
SH256 hash:
cc72de3c9aaea1dc1f3febfff9c024dfd03550579494602d5a4e5c40790c3480
MD5 hash:
0bcbd0b15d590aa9f453491bda3b6fb6
SHA1 hash:
d8851b1bef771fbb139e890958b24352c937772d
Link:
https://www.unpac.me/results/479d9429-701d-4033-9a08-f7efe5922584/
SH256 hash:
52aa7c16a6eb4c879d8a879c8656c693cdbf77f418992d7bb932f46aba26732d
MD5 hash:
cb6ce91ee0ad5ebecb34230447253091
SHA1 hash:
b70fcf60d705b9414ad3b6b997412e7ad75e96a3
Link:
https://www.unpac.me/results/479d9429-701d-4033-9a08-f7efe5922584/
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/479d9429-701d-4033-9a08-f7efe5922584/
Parent samples :
1f74a34a965bb67c02e8f7a733d7d5f98b1b88e11a7816c29934a6a073e662f2
3fbed13bf271b55a9eca7fe2e7ec051fb9e4b02ace3dce84468b1acb57962fb4
69cdb8718955325126a19a236de13ef83b27941b518dd43987d8fbed3ffe9d30
e23f9ca1ce688d9883147d54508d94d1833616df218f6b1ee1e5ba9ff324abf0
232413f73e7b46e00ccf36baf862343989068f3d7271a8c6e037d43b6a497d64
2e84d64eef0d8e78d17e8d286eeff95f97abe0048a66175e5e05d1fc31b0c5d4
61545f6e85bfb0ebb6c65a52d511bc09f9eb8f17f41f303fc4028bfbc6a333dd
edadbe7cf0557fdede01500da1d161ceeac3fadd16760f325da7938d25cf2b6e
bcd57fcb786185b2c8c6acf1f9d0182d06caae28fc6930ced2fcd5a9c81a96fa
f10110817fa77d6bea276c3d4ee43729d9889e760fa6ce503664613a1d5526da
ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7
SH256 hash:
ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7
MD5 hash:
3e16828f9b86c29be606f9e88ee5489d
SHA1 hash:
5b9719b6e42579c2b0f2922872f97bf880f98721
Link:
https://www.unpac.me/results/479d9429-701d-4033-9a08-f7efe5922584/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7

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 ef5e4f410d3cdeae6dce996c13c836cac3118327d53f364a547eaa12d4f2c2e7

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2175067/
Cape
Cape
https://www.capesandbox.com/analysis/268277/

Comments


Avatar
zbet commented on 2022-05-02 19:11:30 UTC

url : hxxp://198.12.107.116/50/vbc.exe