MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35. 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 4 File information Comments
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SHA256 hash: e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35
SHA3-384 hash: 6f9240cc4e0d5b1ecfca04f365ef48bee30df125806493ee5590a982da2da1261da4e4de695465ad21125a58bdae8b88
SHA1 hash: 17c3df6978fc5dd168bdf9a4dafb7f9b0ec4023b
MD5 hash: a9bb1b4980d800c44a933042e44ad817
humanhash: four-august-princess-orange
File name:INVOICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:73'216 bytes
First seen:2023-11-23 14:13:06 UTC
Last seen:2023-11-23 16:18:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:ANjU0ptB1Ntj/dDKmJtW55NvDwhVc+w98XyF88EhhfZs:Q1B/dD1JovoNXWUjK
TLSH T14C635B1D2F9EAB12C7AD477F84D3B6814378D4B2A347E70B79C8522688263DB5483B47
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
339
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2023-11-23 14:15:00 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/b0c2d81f-70d8-4bea-8613-2646032f4a05

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/459867/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.13923.4335.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending a custom TCP request
Query of malicious DNS domain
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed smartassembly smart_assembly
Link:
https://www.filescan.io/uploads/655f5e2ec92af24594b3668b/reports/0d6c8861-b049-4056-ad19-5d94d7e5ad24/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/ceddabd2-6d89-4e19-b0d5-29e6887fa65c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1346971
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
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
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 has a suspicious name (potential lure to open the executable)
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)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1346971 Sample: INVOICE.exe Startdate: 23/11/2023 Architecture: WINDOWS Score: 100 48 www.waktugaspoolne3.xyz 2->48 50 www.4juris.xyz 2->50 52 22 other IPs or domains 2->52 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 70 8 other signatures 2->70 10 INVOICE.exe 16 5 2->10         started        15 Zamlcnt.exe 14 5 2->15         started        17 Zamlcnt.exe 4 2->17         started        signatures3 68 Performs DNS queries to domains with low reputation 50->68 process4 dnsIp5 60 qu.ax 149.28.36.128, 443, 49708, 49710 AS-CHOOPAUS United States 10->60 46 C:\Users\user\AppData\Roaming\Zamlcnt.exe, PE32 10->46 dropped 82 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->82 84 Injects a PE file into a foreign processes 10->84 19 INVOICE.exe 10->19         started        86 Antivirus detection for dropped file 15->86 88 Multi AV Scanner detection for dropped file 15->88 90 Machine Learning detection for dropped file 15->90 22 Zamlcnt.exe 15->22         started        24 Zamlcnt.exe 15->24         started        26 Zamlcnt.exe 15->26         started        28 Zamlcnt.exe 15->28         started        30 Zamlcnt.exe 17->30         started        32 Zamlcnt.exe 17->32         started        34 Zamlcnt.exe 17->34         started        file6 signatures7 process8 signatures9 72 Maps a DLL or memory area into another process 19->72 36 FUfnRhKvULhrfL.exe 19->36 injected process10 process11 38 unregmp2.exe 13 36->38         started        signatures12 74 Tries to steal Mail credentials (via file / registry access) 38->74 76 Tries to harvest and steal browser information (history, passwords, etc) 38->76 78 Writes to foreign memory regions 38->78 80 3 other signatures 38->80 41 FUfnRhKvULhrfL.exe 38->41 injected 44 firefox.exe 38->44         started        process13 dnsIp14 54 4juris.xyz 198.136.59.220, 49724, 49727, 49728 DIMENOCUS United States 41->54 56 humblesrv.com 192.185.99.21, 49748, 49749, 49750 UNIFIEDLAYER-AS-1US United States 41->56 58 8 other IPs or domains 41->58
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35/
Threat name:
Win32.Trojan.Barys
Create hunting rule
Status:
Malicious
First seen:
2023-11-23 08:35:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4jmbgnkzoo3u34m35nwsnvaxar4ubviwudtwg3o7itjeaendfm2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Link:
https://tria.ge/reports/231123-rjzd7sba8v/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Unpacked files
SH256 hash:
09f8c7da7fb362215fcf9fbf2c07e62d2bba3a14787b0bdaf68efa326c623958
MD5 hash:
db877bfa8c02d8dc6e0361a9d1ddce13
SHA1 hash:
dbd2303ff9023730e8c68d6b16665530418d8230
Link:
https://www.unpac.me/results/f42e3440-c112-40f3-a74e-09d7fd7c3232/
SH256 hash:
e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35
MD5 hash:
a9bb1b4980d800c44a933042e44ad817
SHA1 hash:
17c3df6978fc5dd168bdf9a4dafb7f9b0ec4023b
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/f42e3440-c112-40f3-a74e-09d7fd7c3232/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e25813355973/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/e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:NET
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Author:malware-lu
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.

Malspam

Formbook

Executable exe e25813355973b74df19beb6d26d417047940d516a0e7636ddf44d24011a32b35

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459867/

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