MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7. 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: d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7
SHA3-384 hash: 8c2c7ab7e11bfa21c285fe739fc262e8b8faf3102e13d079512c3714d7dc2bc0ecd14ad38f96f3ba8b291f03cdb0abd8
SHA1 hash: d5d12e3eece9cdf2c0bdc5245bba522715cb6ef7
MD5 hash: ed9b4cfffe81db84f78eccdc9ba2de08
humanhash: nebraska-solar-pennsylvania-london
File name:8YR4efs2RpFwopI.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:679'424 bytes
First seen:2023-11-14 12:36:58 UTC
Last seen:2023-11-20 07:45:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:H4AFnS2cHZL4mlAHmGZ7ujde6HrD75v+zG2HmvjBlaFjQhQrajzT7wjx:YqS3U396dNr/YzGsyjIFcQ
Threatray 32 similar samples on MalwareBazaar
TLSH T11BE423012F5EA731FBBD83BA153911F013B3B11B6075FA1CECE3A6D54A4AB1A05C196B
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 8aa7839bae32328e (17 x AveMariaRAT, 6 x Formbook, 3 x RemcosRAT)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
312
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
8YR4efs2RpFwopI.exe
Verdict:
Malicious activity
Analysis date:
2023-11-14 12:38:00 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/778e9cc7-ecf9-4e19-9987-7bd2635a488e

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/458512/
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.9736.16201.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/655369f622cb67a37486efb0/reports/37db3a24-759a-4eeb-bf9b-5e85dc535ab9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7
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/d8807165-066a-4d92-8cdd-5509dc733211
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1342307
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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
Sigma detected: Scheduled temp file as task from temp location
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: 1342307 Sample: 8YR4efs2RpFwopI.exe Startdate: 14/11/2023 Architecture: WINDOWS Score: 100 50 www.sonpaapdi.com 2->50 52 www.psiedithaguiar.online 2->52 54 13 other IPs or domains 2->54 66 Multi AV Scanner detection for domain / URL 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 7 other signatures 2->72 10 8YR4efs2RpFwopI.exe 7 2->10         started        14 NarxKvQUK.exe 5 2->14         started        signatures3 process4 file5 46 C:\Users\user\AppData\Roaming46arxKvQUK.exe, PE32 10->46 dropped 48 C:\Users\user\AppData\Local\...\tmpE16B.tmp, XML 10->48 dropped 82 Uses schtasks.exe or at.exe to add and modify task schedules 10->82 84 Adds a directory exclusion to Windows Defender 10->84 86 Injects a PE file into a foreign processes 10->86 16 8YR4efs2RpFwopI.exe 10->16         started        19 powershell.exe 23 10->19         started        21 schtasks.exe 1 10->21         started        88 Multi AV Scanner detection for dropped file 14->88 23 NarxKvQUK.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures6 process7 signatures8 62 Maps a DLL or memory area into another process 16->62 27 kxjDPCcvLGefFOtZS.exe 16->27 injected 30 conhost.exe 19->30         started        32 conhost.exe 21->32         started        34 kxjDPCcvLGefFOtZS.exe 23->34 injected 37 conhost.exe 25->37         started        process9 dnsIp10 56 www.nkdgx.xyz 206.238.20.157, 80 COGENT-174US United States 27->56 58 www.glovc.xyz 162.0.214.89, 49729, 49730, 49731 ACPCA Canada 27->58 60 7 other IPs or domains 27->60 39 fltMC.exe 13 27->39         started        64 Maps a DLL or memory area into another process 34->64 42 fltMC.exe 34->42         started        signatures11 process12 signatures13 74 Tries to steal Mail credentials (via file / registry access) 39->74 76 Tries to harvest and steal browser information (history, passwords, etc) 39->76 78 Writes to foreign memory regions 39->78 80 2 other signatures 39->80 44 firefox.exe 39->44         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-11-14 03:00:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2j4zx76e4kc7xfdszx46nc2gg4uiyrgnp3l5l73wqariyy6vew3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
073bd91e3126ffb49e91e35f401d096e6bc474b973d432f001e9df2fb62d7a42
Formbook
2da908b3487a1e8e4a0cb9ca61b7a99f7067f39dc118f75cbdde807dc07b0edd
Formbook
3f0f2b7e3062679b5ba9559637eee1d3ab15dea790fbf3c85b69fcccb3edc8bf
Formbook
68a36aaf1639ea16df035f8d02db1861718af75420c3be35cec42958e33834c8
Formbook
97863fc07fc27a0f99a2d434e307d7530364bfc137f8fd36a68674f1eae3533f
Formbook
b3a50f27f037fc524303604335c490550752f7eb426553a73b12b8ada3d2f892
Formbook
f45cce1292aa30dc88decc03fe81e7c10a64e4302eb1e3faa81c385e36d2a1ff
Formbook
fd2ac4af2e4d90f117a8ba49d77cc480f0ad6a8a6cfa7479384d68ce27939f1a
Formbook
+ 22 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231114-ptfzhabb26/
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 FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
648b401d285b162bd349a92bc5264420855189058adb58e43aaabe512735e0d9
MD5 hash:
c2e8279e49c6eb1bf630a3ef56b8c9da
SHA1 hash:
814141e200ee02f6c722afe32f8996293225b07f
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
SH256 hash:
b3c906be6c97b744f7c705322511ad19f83cf73c18215375ba7266b416895c0c
MD5 hash:
8de104177bdbb41480d968fa8c6b52ba
SHA1 hash:
5f17e90160a90d51b4405e527489a2830ad5f11a
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
SH256 hash:
4b2f8f48c72c0205400527e78f6288b0e26780ce220cfe4b17f733f778213e63
MD5 hash:
db1e68281beec019e5fd3815426d25b9
SHA1 hash:
dba15f019112c8cdecca87c82a2f5a08cfeaaa71
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
SH256 hash:
d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7
MD5 hash:
ed9b4cfffe81db84f78eccdc9ba2de08
SHA1 hash:
d5d12e3eece9cdf2c0bdc5245bba522715cb6ef7
Link:
https://www.unpac.me/results/309f6d5f-416e-4b3c-8bd7-7a146d8c4989/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d2799bffc4e2/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/d2799bffc4e285fb9472cdf9e68b4637288c44cd7ed7d5ff7680228c63d525b7

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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.

Cape
Cape
https://www.capesandbox.com/analysis/458512/

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