MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6
SHA3-384 hash: 8909efc1c3398c6fc939015beb9cbd04b72c20cdcec6649756785538415d120d4d60d13a69a06b9b209382082bdc1c85
SHA1 hash: bfec3b24af7da930de9b38572402d43d7bf76f33
MD5 hash: 3044c4f263c5581c8d699db8be26dd38
humanhash: artist-oklahoma-ohio-chicken
File name:z8Quotation_copy_xls.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:275'429 bytes
First seen:2023-04-28 00:11:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:pYa6ZI7Rs1NwavhsyUluwPqdmdt+dNiq3ZIJGhdUo3KWuL++4ShO4Fg:pYGR/avhkluwPddei0ZOGh2o3e++4ShG
Threatray 2'708 similar samples on MalwareBazaar
TLSH T15D441255B2A0C9BBCCE34B320E74999C3B66DE650E65960B9718BB5CF973880EC1D343
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)
File icon (PE):PE icon
dhash icon 131627272527271c (7 x Formbook, 3 x DarkCloud, 1 x RedLineStealer)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
269
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z8Quotation_copy_xls.exe
Verdict:
Malicious activity
Analysis date:
2023-04-28 00:14:26 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/74d7c7e7-9887-4a22-9a9b-9851037fa51f

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/385241/
Detection(s):
SecuriteInfo.com.Trojan.Siggen20.42181.1763.18315.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/81669/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/644b0f5392903068e34f4147/reports/a21f3464-ed07-4654-9e70-d07b5254a801/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6
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/0bb85df4-255e-42f4-ae8a-97be505b82ab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1222437
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
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 domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 855390 Sample: z8Quotation_copy_xls.exe Startdate: 28/04/2023 Architecture: WINDOWS Score: 100 29 www.toyluve.com 2->29 47 Snort IDS alert for network traffic 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 7 other signatures 2->53 10 z8Quotation_copy_xls.exe 19 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\ovaibkxrgc.exe, PE32 10->27 dropped 13 ovaibkxrgc.exe 10->13         started        process6 signatures7 69 Multi AV Scanner detection for dropped file 13->69 71 Detected unpacking (changes PE section rights) 13->71 73 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->73 75 Maps a DLL or memory area into another process 13->75 16 ovaibkxrgc.exe 13->16         started        process8 signatures9 39 Modifies the context of a thread in another process (thread injection) 16->39 41 Maps a DLL or memory area into another process 16->41 43 Sample uses process hollowing technique 16->43 45 Queues an APC in another process (thread injection) 16->45 19 explorer.exe 4 6 16->19 injected process10 dnsIp11 31 www.kokororo.tech 157.112.152.47, 49689, 49690, 49691 SAKURA-CSAKURAInternetIncJP Japan 19->31 33 www.checavab.xyz 199.192.22.198, 49692, 49693, 49694 NAMECHEAP-NETUS United States 19->33 35 9 other IPs or domains 19->35 55 System process connects to network (likely due to code injection or exploit) 19->55 57 Performs DNS queries to domains with low reputation 19->57 59 Uses ipconfig to lookup or modify the Windows network settings 19->59 23 ipconfig.exe 13 19->23         started        signatures12 process13 dnsIp14 37 www.atomkem.com 23->37 61 Tries to steal Mail credentials (via file / registry access) 23->61 63 Tries to harvest and steal browser information (history, passwords, etc) 23->63 65 Modifies the context of a thread in another process (thread injection) 23->65 67 Maps a DLL or memory area into another process 23->67 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-04-27 14:31:27 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jxnwlbqbn25kufqbqmhtbc52hefebw43w5f2x75ua6be6zfeh2ta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
142f8b22d894f1fee4c501acbc425edec276004d5d30ab7572cdfab85e89ad12
Formbook
1c120ac2bc08fbd5455f3d5a47dd87ce73e40fa4b0f7a3cdb2d41a85c800e603
Formbook
3290889312a146f7ed60102439cb580f84057c98c530c31cae7461b2764f5ad4
Formbook
492cabb55a2f649ce32194e8f9737a51f071b370bc9cd527aa8cd0b844ee7ea8
Formbook
652948efee89fdc5c6d3dc7f65a16aafabd0d224c9fcd55e5f86573f1b2c4aa1
Formbook
804b5ea31eb2d266580093c2a144a1f62ef1ba88e39d2de9d79bbad405408197
Formbook
8dd634edea7c470fe551cc425ff6851db72af868b04b747e5c516d4743fa3055
Formbook
b6fe7602e8f288c48cf04e60306dc9349c5b9ebeb8faf35905abede7d0525480
Formbook
cd5a3db769491e5e9b19fe8f2703456f82dbd128babacf54ac1c494587665f72
Formbook
ffb63b1c0f03e57910b1f9b67f89bfe69768e5121ed5a0ecfc3af93dd6bc4c1f
Formbook
+ 2'698 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230428-ag6xtscf2x/
Behaviour
Modifies Internet Explorer settings
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
1cbb5f713a3b2face2e12ea210f9c534a2039a206924621d364d32d57f2568cc
MD5 hash:
75da200b8e9b877421b03ecf3e85bc9e
SHA1 hash:
af64606834e62c5c78faf747f4f497ec25b1b42f
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/af7abca8-9624-4c42-9325-341d42294ed4/
Parent samples :
db97e5da364058f275f955609d038c46886beabb40e7f40fb30ae3295e352082
4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6
8bd09774a35e497c0f9ce94360ab35ec90479c03b9b792acf5eaf10ec601aa9c
SH256 hash:
d33c3ce8375666c2d7c4e1499b65cbfdcd7fa210cefeac77edd992118c9ca47d
MD5 hash:
c4cc5632c1dae0e7dd9d6ee15a216b72
SHA1 hash:
9262cfce92668d105f8020175d00ab151a00bc6d
Link:
https://www.unpac.me/results/af7abca8-9624-4c42-9325-341d42294ed4/
SH256 hash:
93fbbb7864baa855d18b0f6eae0ad5c68982fdb3437b90081fdf0909af381220
MD5 hash:
3e17d2d791e4fc817c1632d79f6f7215
SHA1 hash:
2cd2feee054263dd34dfd0380bb8d9a774915625
Link:
https://www.unpac.me/results/af7abca8-9624-4c42-9325-341d42294ed4/
SH256 hash:
4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6
MD5 hash:
3044c4f263c5581c8d699db8be26dd38
SHA1 hash:
bfec3b24af7da930de9b38572402d43d7bf76f33
Link:
https://www.unpac.me/results/af7abca8-9624-4c42-9325-341d42294ed4/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ddb6586016e/report/overview.html
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/4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 4ddb6586016ebaaa1601830f308bba390a40db9bb74babffb407824f64a43ea6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/385241/

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