MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
SHA3-384 hash: 44826d3443fce3cd2a700063beee3023d21cecc7066fc311907c71f5170b636ac9c8724ca2b1c83d01a0e9fc26eaccf2
SHA1 hash: 060461b26a84d0db8609404c5f1c7977b3b5a7d0
MD5 hash: 03ba07ae9665412a170bbe06dd55d724
humanhash: mike-kentucky-butter-wyoming
File name:BOQ- AE200073490.exe
Download: download sample
Signature Formbook
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File size:605'696 bytes
First seen:2023-10-22 07:37:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:L8zS55mFzy6+NeUKIDG96nhL2Gq89z/s9lVgkVsWjb/5lojH:Lf55qCNeQa0u89TKlVgcjb8jH
Threatray 122 similar samples on MalwareBazaar
TLSH T115D4121872B8490BD7A88AB0283583954B7A0E572623F75C7DD6B5DF1DF7F884211B83
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 71f0b2e8f0b0e871 (16 x AgentTesla, 4 x Formbook, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
286
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
BOQ- AE200073490.exe
Verdict:
Malicious activity
Analysis date:
2023-10-22 09:01:09 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/1299e305-c27d-45b0-b658-f1613a1c41da

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.7449.32163.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Restart of the analyzed sample
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6534d15fe0fdb6ce7299efc3/reports/f8b4282a-8e36-4e7f-a2b1-4bca42b398f8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2451635f-ccfb-4e6a-b537-2d0fc07660dc
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329952
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1329952 Sample: BOQ-_AE200073490.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 34 www.zjlzhb.com 2->34 36 www.theductalcarcinomas.live 2->36 38 11 other IPs or domains 2->38 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 12 other signatures 2->48 11 BOQ-_AE200073490.exe 3 2->11         started        signatures3 process4 signatures5 56 Tries to detect virtualization through RDTSC time measurements 11->56 58 Injects a PE file into a foreign processes 11->58 14 BOQ-_AE200073490.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 6 1 14->17 injected process8 dnsIp9 28 www.lypap.com 160.124.8.40, 49726, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 17->28 30 www.theductalcarcinomas.live 64.190.62.22, 49723, 80 NBS11696US United States 17->30 32 5 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2023-10-04 01:58:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqgjfiamudyezuciqpkvlbm46leorbfacmu557jwghd4yyjaj74a._file
Verdict:
malicious
Label(s):
formbook
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agenttesla
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Similar samples:
0c6509de077fff4ef7548e682f672a5169136f7ce470b420f2f33890228bf0a4
Formbook
393f41d6aaa447a3fc89f83b3ffb08574464197bf45704ba8226cd070b63c6ed
Formbook
795998e9064cb981d6a40a34fbeee48381121ea7ac7175ffe5b506b11cf843d7
Formbook
7da9294ba554d4c17ed9e4caac9836e303980814c7898b422ccde7a246ac26a5
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
b88b53db5c1fd0779cb7718630d7ac90f0ff81cfc7e8495bff1325743adeff65
Formbook
bbcaa127862b5b70b5a833b3136f431c03a9165dd0a4646ba78922ebcc7ebdc3
Formbook
c1aa65f7c2cc6beb7052c8ada46a3139fc01da66890f4153a7c5761292b71d61
Formbook
+ 112 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hinf rat spyware stealer trojan
Link:
https://tria.ge/reports/231022-jgd2gsfh82/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
bf0a205fe093bc9e68beb911f9e388739aea51f8335b7361cf700fe3b4ce8cf6
MD5 hash:
8692aaa6ec7ebf640d9a62b93483d9d7
SHA1 hash:
c1da3915517ef4dd05f11124da2793a9b1f0bbec
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/def26646-ac47-4890-8b9c-17b8a2bc14bf/
Parent samples :
e01f586f773c36468995eabf2682dfc209824b06a8a784bfb34b7fad499bc22a
edf6c2e805b1b232065ff74c1c2b8c8da24147c9ef17175547ec5fb905005cf1
cac86a33653ddbd3fd4b90781b35d90ca94959583276a8bc0ded89d29b16093b
cc0f366752ad8832bf26a387da04626c8db6f00a69d5a98ce5934d0db01c1329
a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/def26646-ac47-4890-8b9c-17b8a2bc14bf/
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
Link:
https://www.unpac.me/results/def26646-ac47-4890-8b9c-17b8a2bc14bf/
SH256 hash:
2f042839de6aaeef7fa45b69761e4c8b85971a36d581d81c77586d49fefe9e7f
MD5 hash:
326c4ed2024309ab78b85f9cfa303cc1
SHA1 hash:
879c42ff45b16e892b37c9476758bc1e6a5fb4e5
Link:
https://www.unpac.me/results/def26646-ac47-4890-8b9c-17b8a2bc14bf/
SH256 hash:
a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
MD5 hash:
03ba07ae9665412a170bbe06dd55d724
SHA1 hash:
060461b26a84d0db8609404c5f1c7977b3b5a7d0
Link:
https://www.unpac.me/results/def26646-ac47-4890-8b9c-17b8a2bc14bf/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a40c92a00ca0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8

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:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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 a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8

(this sample)

  
Delivery method
Distributed via e-mail attachment

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