MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099
SHA3-384 hash: 3766d995994c72323e016db176692b3694bdde4f7a39f8d4dfc1c443ed6d9e12ca34540252bffb2cb7626273095c7c7e
SHA1 hash: 0baeefb49a0a18bd8b6a92ce1ec75df34f863279
MD5 hash: 36a8be67cf422814b41beafdb26cc124
humanhash: island-twenty-muppet-venus
File name:Dev-Quotation Request Q7688T.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:652'288 bytes
First seen:2023-12-04 09:08:02 UTC
Last seen:2023-12-04 10:33:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:G45+po2J6ruG3XzIQKcpvc+WAF//nn9JmoZ6UwrEof:F+pJPGn0QKqE+91nn9EolwYk
Threatray 245 similar samples on MalwareBazaar
TLSH T146D4238E77FDE305DABD43F598D019A597F5BA09A428FB2E1C5005DA01B6FCA3602707
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)
File icon (PE):PE icon
dhash icon 23ccccfc3c6c2c17 (12 x Formbook, 8 x AgentTesla, 5 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
302
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Dev-Quotation Request Q7688T.exe
Verdict:
Malicious activity
Analysis date:
2023-12-04 09:17:11 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/5a635bee-a622-4cdd-b3ac-6afba7f151b9

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/462279/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.6756.30880.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/656d972f380413dc0c2f8701/reports/d709f06f-2031-4d23-b232-ced09427fbcb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099
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:
Malicious
Link:
https://analyze.intezer.com/analyses/4bc9856f-3286-4912-9258-5c3b9c5f33c1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1352972
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1352972 Sample: Dev-Quotation_Request_Q7688T.exe Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 50 www.zenithspectra.xyz 2->50 52 www.xsemckm.sbs 2->52 54 10 other IPs or domains 2->54 64 Snort IDS alert for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 72 8 other signatures 2->72 10 FkoPyx.exe 5 2->10         started        13 Dev-Quotation_Request_Q7688T.exe 7 2->13         started        signatures3 70 Performs DNS queries to domains with low reputation 50->70 process4 file5 82 Antivirus detection for dropped file 10->82 84 Multi AV Scanner detection for dropped file 10->84 86 Machine Learning detection for dropped file 10->86 16 FkoPyx.exe 10->16         started        19 schtasks.exe 1 10->19         started        46 C:\Users\user\AppData\Roaming\FkoPyx.exe, PE32 13->46 dropped 48 C:\Users\user\AppData\Local\...\tmp7DEC.tmp, XML 13->48 dropped 88 Uses schtasks.exe or at.exe to add and modify task schedules 13->88 90 Adds a directory exclusion to Windows Defender 13->90 92 Injects a PE file into a foreign processes 13->92 21 powershell.exe 23 13->21         started        23 schtasks.exe 1 13->23         started        25 Dev-Quotation_Request_Q7688T.exe 13->25         started        27 Dev-Quotation_Request_Q7688T.exe 13->27         started        signatures6 process7 signatures8 62 Maps a DLL or memory area into another process 16->62 29 hmyaPvJeHnAaLtvRaBlPPMvERl.exe 16->29 injected 33 conhost.exe 19->33         started        35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 WerFault.exe 21 16 25->39         started        process9 dnsIp10 56 krystas.com 50.87.145.7, 49747, 49748, 49749 UNIFIEDLAYER-AS-1US United States 29->56 58 www.snap-em.com 217.160.0.45, 49755, 49756, 49757 ONEANDONE-ASBrauerstrasse48DE Germany 29->58 60 7 other IPs or domains 29->60 94 Maps a DLL or memory area into another process 29->94 41 mshta.exe 29->41         started        signatures11 process12 signatures13 74 Tries to steal Mail credentials (via file / registry access) 41->74 76 Tries to harvest and steal browser information (history, passwords, etc) 41->76 78 Writes to foreign memory regions 41->78 80 2 other signatures 41->80 44 firefox.exe 41->44         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-04 01:42:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m2xwmntq25rtu7ygbqow2sospwpd24elsvpdyotxxz3a6pdoscmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2adf12374473a7fd42a48cd30a1e59f4668ac77b82e4b0c02ffd498f57f0520f
Formbook
6de3ca2658af9f752d06492509b21dbe3862fc018270f56d5a2894cb6e5a1e7a
Formbook
6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70
Formbook
6eaee93f96963100221bee90dc15dc6d046951a7ce0a4aafe3ded7bbffa1b0e3
Formbook
871a29a5b20d5534205d177ec159eb6984e1b543b31d66f5d2110838e50fb86e
Formbook
c06234b2b8ed7a17f456a98a51014983c603fa2b6d232c2aae989a9a45fc13bb
Formbook
d76f0bd5be27187672f2b89be93eba20033cadb397398143bfe6f81d8ef4d9dd
Formbook
+ 235 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/231204-k3yhpaab2y/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
a95eec686f2f85ea5aa01efc491b780c7c02b8ee77ea2ded069e39a2418e6494
MD5 hash:
0e9b855f2224fbd55a223c2373cbbcb5
SHA1 hash:
ea9d6dd625b713167dd8dd70fb0a3a203033ac9f
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
SH256 hash:
3bde6b71c6ad3571b84306cbb4c3e0ca6bf45eee1f19fc7592bb4afad7c44df0
MD5 hash:
75958fdad612b366837816adcf9d0e96
SHA1 hash:
88ec33601498a45c0a94ebedc0151f4c2a546d63
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
SH256 hash:
87ca4712aec2ec7e036b2e2c80b01324e3bfc6e9c4cadcd02a823ce6a5fe9688
MD5 hash:
4bfcdc66dd553059efb35894e38a5d36
SHA1 hash:
74c1356359c2e7a94652fd2acc94babfbc13f2c2
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
SH256 hash:
7fa6342560b497a18146dd6b9841992b18d9c077135977fe26139821058a4cd3
MD5 hash:
b4bbca1c613fcae703f1ec6fd514c496
SHA1 hash:
4145d88512331f57472fac46cf1742d97a2d1a8c
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
SH256 hash:
66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099
MD5 hash:
36a8be67cf422814b41beafdb26cc124
SHA1 hash:
0baeefb49a0a18bd8b6a92ce1ec75df34f863279
Link:
https://www.unpac.me/results/cc46d195-e227-47fc-9f40-b5190b750ec9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66af663670d7/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/66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099

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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
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 66af663670d7633a7f060c1d6d49d27d9e3d708b955e3c3a77be760f3c6e9099

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/462279/

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