MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
SHA3-384 hash: 7ffa1124aecdb98578ec7a32806eaf6ac45d589a4de235602d41d2ae723f7e4c39b80b982896b8854d623506d0aaf1ca
SHA1 hash: e7633d0c57090b02b02b14a0f3b83894f42e225a
MD5 hash: 61af9d6bd30dca0a81637bce9d679636
humanhash: artist-three-april-yellow
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:879'112 bytes
First seen:2024-04-02 13:27:25 UTC
Last seen:2024-04-02 14:34:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:aoatPGmMZcYFaGVienx6Ps8DIlDnOc6C4ETCiwjI/ovwU+21f8Q7w0sdWrnZrY4U:V+MtrVBnB1nLHGiwwovVZnnk
TLSH T18415F1993260B1DFC857C872DA685C64FB7175AB670BD243982321EDA90DAD78F201F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 69d496b271e8d010 (7 x AgentTesla, 4 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
312
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210.exe
Verdict:
Malicious activity
Analysis date:
2024-04-02 14:01:38 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/bbde791e-7f50-44d0-80fe-626e625ae948

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/660c07e8ec04992a87d838d1/reports/2be7196a-9df3-40be-8338-95b9c171d6e8/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/793fa9fb-dee2-47f3-861e-1be4bc1bde57
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1418731
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1418731 Sample: file.exe Startdate: 02/04/2024 Architecture: WINDOWS Score: 100 30 www.eh28mf3cdv.xyz 2->30 32 xiaoyue.zhuangkou.com 2->32 34 13 other IPs or domains 2->34 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 5 other signatures 2->52 10 file.exe 3 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 30->50 process4 signatures5 64 Detected unpacking (changes PE section rights) 10->64 66 Detected unpacking (overwrites its own PE header) 10->66 68 Injects a PE file into a foreign processes 10->68 13 file.exe 10->13         started        16 file.exe 10->16         started        process6 signatures7 70 Maps a DLL or memory area into another process 13->70 18 mKMSITplkPED.exe 13->18 injected process8 signatures9 42 Found direct / indirect Syscall (likely to bypass EDR) 18->42 21 isoburn.exe 13 18->21         started        process10 signatures11 54 Tries to steal Mail credentials (via file / registry access) 21->54 56 Tries to harvest and steal browser information (history, passwords, etc) 21->56 58 Modifies the context of a thread in another process (thread injection) 21->58 60 2 other signatures 21->60 24 mKMSITplkPED.exe 21->24 injected 28 firefox.exe 21->28         started        process12 dnsIp13 36 www.quickstart.design 46.28.106.211, 49713, 80 WEDOSCZ Czech Republic 24->36 38 www.ibistradingco.com.cdn.hstgr.net 191.96.144.210, 49739, 49740, 49741 RAINBOWIDC-AS-APrainbownetworklimitedJP Chile 24->38 40 8 other IPs or domains 24->40 62 Found direct / indirect Syscall (likely to bypass EDR) 24->62 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210/
Threat name:
Win32.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-04-02 01:58:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
17 of 24 (70.83%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4pyqlrkduhdkid427flqz5772jt4e2oip7tc6wpfw2trpknoiia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240402-qqn2dabd2v/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
a59378ca16dc6ffbc07d8716889f4cb3a8d769068a9e58fd288f99afb9e66552
MD5 hash:
059c1b7332fc4ff2f21a2ef20fa093f1
SHA1 hash:
a41f80e695241d25971b7f26b7cd90e3f9d983ea
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
SH256 hash:
1ae5ee514b7d71a3b8d5fe7182c901b0529acbc013fa4e25dcfccfeff75732f6
MD5 hash:
6c46476fb561195ddf67ae3c0861cb27
SHA1 hash:
280e9938a135fcb522e181ffb1211f73c28d871d
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
SH256 hash:
8ebd66eb93fb976111f908ed0b7f042df792042335ebf9f168dd04fa90093a3e
MD5 hash:
c5db8853b26c2bba24465a3f432d0e6c
SHA1 hash:
f709c5cbbf1b7905242c8df721e1b5b91d93ade8
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
SH256 hash:
e6c4514bde1c63611a2d8ccb32fe5ca66d2e2717b637b7ac08280c478f6ecf32
MD5 hash:
972cdae13b4c6457984db34da696d564
SHA1 hash:
7dfa012bdcdd7c7ca7040924a702c295ec92b964
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
SH256 hash:
7cfce9d4374f24d233171eaff3aa995d700542bf0a9fd54f183745647f450c4a
MD5 hash:
aacd3a7a18721a1a5e2aac83bfedc3c9
SHA1 hash:
2743a9077e031d648c206c00bc0fa38f9e0dab38
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
SH256 hash:
bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
MD5 hash:
61af9d6bd30dca0a81637bce9d679636
SHA1 hash:
e7633d0c57090b02b02b14a0f3b83894f42e225a
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/f71c021f-073f-4965-b7ad-2b242d8a12fd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf1f882e2a1d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.26
Link:
https://yomi.yoroi.company/submissions/bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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.

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 (HIGH_ENTROPY_VA)high

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