MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1
SHA3-384 hash: 53aa1690f663631b4fab1c11cafbb58525d3a78fb2ca46188eb63db6e28138ad4c863789f5cf443d3934ded81b7b33d2
SHA1 hash: 991801525b52069bb48c8c2907dcb587c592ce11
MD5 hash: a217ff7da729f56faf0bb3de4ad87f40
humanhash: oven-island-king-pasta
File name:Re property pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:702'976 bytes
First seen:2024-10-19 10:54:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:cKIFhlPlL/LMopPIIA6J1x5/9uQQbolbczlsP7AAsZK4G45AWqpA/:cKIdPlL4wo6PL9EbolbczlsP0A/43d0u
Threatray 2'415 similar samples on MalwareBazaar
TLSH T1C6E41260A92EEC32C9E517B01130E7B30B769ECCE411D3139AEEECD7BA167963595390
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 1ee5e39be66238a0 (9 x Formbook, 3 x MassLogger, 2 x SnakeKeylogger)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
406
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Re property pdf.zip
Verdict:
Malicious activity
Analysis date:
2024-10-15 07:57:51 UTC
Tags:
arch-exec formbook stealer xloader
Link:
https://app.any.run/tasks/e4c51c27-ddbe-4d99-9316-46ac491b7054

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.27.24712.24493.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6713901134f884d15c8d11cd
Tags:
Snakelogger Powershell Underscore
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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 packed packer_detected
Link:
https://www.filescan.io/uploads/6713900d7f0550dc47f974c3/reports/698124f6-562b-4846-be6c-794e095bbed5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1
Result
Verdict:
SUSPICIOUS
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/d80f1a97-5469-431d-944c-76714b817e4e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1537675
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1537675 Sample: Re property pdf.exe Startdate: 19/10/2024 Architecture: WINDOWS Score: 100 54 www.hcpf.xyz 2->54 56 www.whiterabbitgroup.pro 2->56 58 29 other IPs or domains 2->58 70 Suricata IDS alerts for network traffic 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 Sigma detected: Scheduled temp file as task from temp location 2->74 78 9 other signatures 2->78 10 Re property pdf.exe 7 2->10         started        14 hwOHPmqcegxcxb.exe 5 2->14         started        signatures3 76 Performs DNS queries to domains with low reputation 54->76 process4 file5 46 C:\Users\user\AppData\...\hwOHPmqcegxcxb.exe, PE32 10->46 dropped 48 C:\...\hwOHPmqcegxcxb.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmp4EB6.tmp, XML 10->50 dropped 52 C:\Users\user\...\Re property pdf.exe.log, ASCII 10->52 dropped 88 Adds a directory exclusion to Windows Defender 10->88 90 Injects a PE file into a foreign processes 10->90 16 Re property pdf.exe 10->16         started        19 powershell.exe 23 10->19         started        21 schtasks.exe 1 10->21         started        92 Multi AV Scanner detection for dropped file 14->92 94 Machine Learning detection for dropped file 14->94 23 schtasks.exe 1 14->23         started        25 hwOHPmqcegxcxb.exe 14->25         started        27 hwOHPmqcegxcxb.exe 14->27         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 16->66 29 uGMCFMVqKoR.exe 16->29 injected 68 Loading BitLocker PowerShell Module 19->68 33 WmiPrvSE.exe 19->33         started        35 conhost.exe 19->35         started        37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        process9 dnsIp10 60 www.setsea.info 203.161.41.204, 49996, 50012, 50018 VNPT-AS-VNVNPTCorpVN Malaysia 29->60 62 b1-3-r111.kunlundns.top 129.226.56.200, 50048, 50049, 50050 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN Singapore 29->62 64 7 other IPs or domains 29->64 96 Found direct / indirect Syscall (likely to bypass EDR) 29->96 41 PresentationHost.exe 13 29->41         started        signatures11 process12 signatures13 80 Tries to steal Mail credentials (via file / registry access) 41->80 82 Tries to harvest and steal browser information (history, passwords, etc) 41->82 84 Modifies the context of a thread in another process (thread injection) 41->84 86 2 other signatures 41->86 44 firefox.exe 41->44         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-10-14 07:24:37 UTC
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhkkuq3srm4732n2dlsanqijaq3jy3gpx3wrynd3qr5q5dfgxsyq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
Similar samples:
40b7c4e41ebf709edb2720bb2681b40e10e39e458a4310513cbdc217d22e977f
Formbook
64c3f8bf923b9869c7b0f2a77eb1b1db64eae1caec23fa0da3da85c2c885b139
Formbook
d52b8e527ad35f54de8e65b0d7c324a9c1afddcd0d09e4d20ea0cb7c8b327394
Formbook
ec2687f0e226016d1cec0764216b00675b8bda746aa9606053f62f3ed799f3d6
Formbook
fadafafbdecdb64b00e6bddcb0e33bf68c2a512512fcacefc1d848e35ff3a001
Formbook
fd207cf9a301ed51c591ad633cfb38d090f91620c5ce4595d4ea764695b25abd
Formbook
+ 2'405 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/241019-mz4xeavakn/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3a5eb9d4-1faf-4519-b7d7-b8dc1873e26d
Unpacked files
SH256 hash:
49d7f2c2957d549125398107dec6c9522ccded476f411b08c97477aa45de1c40
MD5 hash:
15137702125ac99a77adc84fe6f8cd7f
SHA1 hash:
ccd20237b4a65928714a0afbfa1b63bb052fa016
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/67ca8bc5-f009-432c-8b08-f12e84c7a236/
SH256 hash:
17b1d0d6ef63f62c8f78413021aad4e49c01c49cd6d08e17701d7be752feb473
MD5 hash:
141e52b8469559bfdf78d9f32b6ea9d6
SHA1 hash:
ad602203bb2b5e36cb8135e8e79688f0967270d0
Link:
https://www.unpac.me/results/67ca8bc5-f009-432c-8b08-f12e84c7a236/
SH256 hash:
ea72f09a3e2db37b19bfa374fe98de07c0f5a1b2dce60ae875c17d996d312b38
MD5 hash:
bee035eaba04a77312f1bb527a3f4183
SHA1 hash:
8542e144f98b03728b4d255ee3f470d5d80e93a8
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/67ca8bc5-f009-432c-8b08-f12e84c7a236/
Parent samples :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 hash:
fc1cc631a66df8654aed82052e460ad967961d910e27faccb74e98121db6d15d
MD5 hash:
d1fbe4e4a43b9712db0236bbe36defb3
SHA1 hash:
66ad6fc50ba3c044046757d1e4b525f737c05292
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/67ca8bc5-f009-432c-8b08-f12e84c7a236/
SH256 hash:
a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1
MD5 hash:
a217ff7da729f56faf0bb3de4ad87f40
SHA1 hash:
991801525b52069bb48c8c2907dcb587c592ce11
Link:
https://www.unpac.me/results/67ca8bc5-f009-432c-8b08-f12e84c7a236/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a9d4aa43728b/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/a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1

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 a9d4aa43728b39fde9ba1ae406c10904369c6ccfbeed1c347b847b0e8ca6bcb1

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments