MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a
SHA3-384 hash: b2b5b8a4a4cddeca7feea8d3b95997578ba214b112ae47cca65a3854b8c76f5935af23e1cd348a17acd836e2629b8c71
SHA1 hash: ace624e52f276d27462547b7feef07cc0b585ce9
MD5 hash: e955881d67ecd58d8db5801affc722b8
humanhash: hydrogen-nevada-network-purple
File name:eInvoice_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:990'208 bytes
First seen:2022-11-21 09:21:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:1Fxy9RppEHJOMzsWt2Hkpz6T9ZkT0tmMCU+hl3yd+L74mBfNUstzo:1vGEH0MwWt2k6TPkT0tVP+D3
TLSH T164257C5F2B7FDEF0EA245CFB221457039C3259EABA8BCA7843946BC660F161C5B70464
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
eInvoice_pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-11-21 09:27:43 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/4f10eb65-30d6-48d1-9fce-9706814824c7

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/336664/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.389-2.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/637b433c5f223762e6ee0a83/reports/8a40cb7d-5a9c-43a8-ae3f-704f60a82f7f/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/1f36c529-8a0a-41ab-aab0-b810c529e04d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1117944
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 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: 750654 Sample: eInvoice_pdf.exe Startdate: 21/11/2022 Architecture: WINDOWS Score: 100 34 www.xdawo.com 2->34 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 7 other signatures 2->44 9 eInvoice_pdf.exe 3 2->9         started        signatures3 process4 file5 26 C:\Users\user\...\eInvoice_pdf.exe.log, ASCII 9->26 dropped 12 RegSvcs.exe 9->12         started        15 RegSvcs.exe 9->15         started        process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 Queues an APC in another process (thread injection) 12->60 17 explorer.exe 12->17 injected process8 dnsIp9 28 www.bandprental.com 208.91.197.27, 49699, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 17->28 30 www.merlininvester.com 199.59.243.222, 49703, 49704, 49705 BODIS-NJUS United States 17->30 32 2 other IPs or domains 17->32 36 System process connects to network (likely due to code injection or exploit) 17->36 21 msiexec.exe 13 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 46 Tries to steal Mail credentials (via file / registry access) 21->46 48 Tries to harvest and steal browser information (history, passwords, etc) 21->48 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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2022-11-21 08:29:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shphjwwvlqvsgjdz3zv3md3iupb2eyfk2in7wafbbqpfhus7snfa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:docv rat spyware stealer trojan
Link:
https://tria.ge/reports/221121-lbxbzsge4t/
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
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7e43a424-d63b-4afb-a549-b96d0ee6676b
Unpacked files
SH256 hash:
2374dae887ec717c748faf816dc37896f7f1d063203101d6aadc04dd413af870
MD5 hash:
98bf319ec325584aa76ff21e47581bf1
SHA1 hash:
d54f7969d03e859b87db59251ba7006e163d6a06
Detections:
XLoader
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
Parent samples :
320f7bf0fe5297d7735fc088454b523107d87d011a332e0362da98df35b5d8c3
9c093643caa5d9e0a314fdd8bad4c6b44d64793f36d7627a7219080f29de4ccb
8ddd2ba01927bb631eda5dee78b63f8cdb91db44e9418fd4eb313b6b4847f6d7
b48635778fb14d1746af5e53f73c843362de073e5839003586f8d7d4cf0a6df5
91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a
dff25372f8a0a3b43b9de36be64239d4cb3c722b95d416cd48b44c734689d20c
SH256 hash:
5e0cc77dfef4a945109202d86237fe6ad2390a8b3f5af80d604c0c96e3b1e2a1
MD5 hash:
1d1f2123f0d4f52b16cde072cdd3aa67
SHA1 hash:
448c24ef523a919b8ad3e76db113b3f88aa942be
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
SH256 hash:
3c991a72c8e047741d335988afa4abdce606075f3dcc82ed1567c5d583a8edc1
MD5 hash:
4232101413dc24d4c6a68f9be716daa2
SHA1 hash:
f4d118c377b5d64d535089e6750123f6f768379f
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
SH256 hash:
74e39364dd5763937d1e01feed6ecae0975997708e823c063ed640ef9164b600
MD5 hash:
b75bd51f99eb02a99cd8354df1e0225b
SHA1 hash:
cd034dafab697f15765209139157581921a0d0c2
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
SH256 hash:
2a53ff1d1035bc5512d9576fa72a156f1a20524f612484d160957ed71fd81e88
MD5 hash:
7b9957f617fb9997b8b29ff7bef25e5d
SHA1 hash:
2b915260cb0816577eccf69d97ca6eb6778789f0
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
SH256 hash:
91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a
MD5 hash:
e955881d67ecd58d8db5801affc722b8
SHA1 hash:
ace624e52f276d27462547b7feef07cc0b585ce9
Link:
https://www.unpac.me/results/3ae40e5c-cfcd-41d6-b6d6-57a64d32ca00/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91de74dad55c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a

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.

Malspam

Formbook

Executable exe 91de74dad55c2b232479de6bb60f68a3c3a260aad21bfb00a10c1e53d25f934a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/336664/

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