MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8
SHA3-384 hash: b03e9325674fc3befeb25e7706a4bdd2777a66da1be1b363cad9a57d5aefd1a091c0aafa5349081719acb8b22dc696ec
SHA1 hash: b02a114d841673f4b327306f56e75681f8954a56
MD5 hash: d24e255953911e054e6e7d5ff00096cd
humanhash: east-queen-april-arizona
File name:ungziped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:679'936 bytes
First seen:2024-04-03 12:57:48 UTC
Last seen:2024-04-08 07:50:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:X093yJmPnUIfjlGsux6aGf8fs+N3kpj/rq1l0QZxrajzl+WY:o3YmPPlG/0b8fEEldkl+n
Threatray 259 similar samples on MalwareBazaar
TLSH T1ADE423942BF02F6AD235D3F810B2692103F1768DBD42CF5C9D9860C71677B298661FAB
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
314
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8.exe
Verdict:
Malicious activity
Analysis date:
2024-04-03 13:35:50 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/0cd8c066-063a-4700-af33-0ff6526a166c

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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/660d5282aeca3665d3b58693/reports/bc1e22e6-b72c-4c61-8578-78c8b149daea/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/91cf56dc-c742-4696-8b90-d92f041c4c65
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1419395
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
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
Queues an APC in another process (thread injection)
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: 1419395 Sample: ungziped_file.exe Startdate: 03/04/2024 Architecture: WINDOWS Score: 100 28 www.vivelenoire.co.uk 2->28 30 www.gacor88gaming.com 2->30 32 17 other IPs or domains 2->32 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 5 other signatures 2->48 10 ungziped_file.exe 3 2->10         started        signatures3 process4 signatures5 60 Injects a PE file into a foreign processes 10->60 13 ungziped_file.exe 10->13         started        process6 signatures7 62 Maps a DLL or memory area into another process 13->62 16 dkrqSjvqQTiupNfUrGmPB.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 SecEdit.exe 13 16->19         started        process10 signatures11 50 Tries to steal Mail credentials (via file / registry access) 19->50 52 Tries to harvest and steal browser information (history, passwords, etc) 19->52 54 Modifies the context of a thread in another process (thread injection) 19->54 56 2 other signatures 19->56 22 dkrqSjvqQTiupNfUrGmPB.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.momentumholdings.top 203.161.50.128, 49738, 49739, 49740 VNPT-AS-VNVNPTCorpVN Malaysia 22->34 36 www.drjoserizal.com 15.197.130.221, 49730, 49731, 49732 TANDEMUS United States 22->36 38 12 other IPs or domains 22->38 58 Found direct / indirect Syscall (likely to bypass EDR) 22->58 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-04-01 07:41:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=frtuhukaxulqwjsfelqyqyupopy3ryq2c4jn43o4ud2ezvndckua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
12fb27d7a59c168a82317baa0b127b8a826cc98dd108fc37fd022d8a842b06bc
Formbook
25ddae2daf0f3117cfed10da3447d26c5291a324b44534ed692a873934bac628
Formbook
8cb37e1ab48747e7fb63dd2ac1bffe1c9f0fa98c160613922a995935d6abd2cc
Formbook
9a565700a3d3c7a802780c0e4ba717b082175fd33b5afc7dcfeb95905b6db784
Formbook
ad048fa92eef59c07432e25c1afa2af4853be0a301e3ea64910352373fdea51c
Formbook
bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
Formbook
cb348e8dbd6c518a9ad671a9fb235cea3eeba8b7036fc5498f6b118d4bc3060b
Formbook
d48e76a16a20d4af37091f9dea89ce3fa2341e273a3898ac1b8b398c2a5793d5
Formbook
d56e9061e7f6df6e094d1582d817c381f8ce9ac6c3925cba5da96464487a18b7
Formbook
dfa384f6136c43639f6c66766ca81c245e65a70fcf92015656b1cd7a579a3647
Formbook
+ 249 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240403-p7qqvsdg93/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
559ce5ccc4f2bd043013d3be477b70c60bf6bdfe7c8c7c4326084ebd09da5569
MD5 hash:
8faa930655425f9ff65742eaa7ad7a7a
SHA1 hash:
532e054082236beed4c6fd9c9da00f5deca1eb24
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
Parent samples :
2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8
88f28e5053f90a2b68e11f599f4136eaf462c9ad3cf319c96882f5b19386aef1
SH256 hash:
5536a12dfbd2d3a158c7be6fdec8b510b281a4a34f896b356d1f4a7e41dd87ce
MD5 hash:
9de907a8c7112dbdf6172e6bbf663eb3
SHA1 hash:
d3f802adde7b08d9a5cd37e8a188a77fc41b73a0
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
8ebd66eb93fb976111f908ed0b7f042df792042335ebf9f168dd04fa90093a3e
MD5 hash:
c5db8853b26c2bba24465a3f432d0e6c
SHA1 hash:
f709c5cbbf1b7905242c8df721e1b5b91d93ade8
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
77c97e8e80104e8378e94aa59e68ea5579ad01925014188eedb77dd803373a7c
MD5 hash:
249dce596289fdb1fb3e050489cdee9c
SHA1 hash:
4787249cf80fb08a5b69e152d41a0612db280f14
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
f5be1c1763f59c967f7437ab7f7664d355c3cd8aadaa7942525694c1e69ae223
MD5 hash:
72ee7849c618133375d012b5e4c32860
SHA1 hash:
26010e8f08c17a7b929f6ccf3a906075adb91941
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
2eba289dfea932466fbbde0130a7b66c17ae2e7195a2dd8be4eec4ff6d51361a
MD5 hash:
6d83746c37792ae4ddb56cc0da5ed30e
SHA1 hash:
dae8613035457e6f64943e017882a440bf2b8629
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
8e10d4744d1fdb53ab4194f50d24f0c25a03e01cd6beb4cb67d9e1cd7f92ea95
MD5 hash:
11ea951ee23730715b9f1bc3f17a5c7c
SHA1 hash:
c0f916df47423c3aea896c7f51911e8212457477
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
9357f34fd59b92ecb49c5b6e56dc9755b68e830f374dced97d23d54f734baf4e
MD5 hash:
f74879cf8a633cd1567580859084ef67
SHA1 hash:
7972217a2a89c1d50ebf6294301065b6aea7b6b8
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
64962d263388ac02c0dc8f02184fedafff30355b842762041d88afaccfee540c
MD5 hash:
ec58a2f1b53db0593a2518703e1c9791
SHA1 hash:
6ea868cd08d66c0a9248e1a3dd6cd09c3b2769ad
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
9649653f999e6cc3e581bf7460b989eff495d05e7bacacaae3e431f4b5e1097e
MD5 hash:
e0b67d33faa1a5fb018af1c79d832cfc
SHA1 hash:
6dd294fd9afc08e5d33c2f1dd4a60840c8e461b3
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
4002a1a653d0db31d04fad4ae48d1e2bc1dda0860511b6227f028149a10f4faa
MD5 hash:
31c7ef33184ecd1d040f84256394bad3
SHA1 hash:
2f815fbc3c08c3d841dde364c73bd218e22ef847
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
SH256 hash:
2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8
MD5 hash:
d24e255953911e054e6e7d5ff00096cd
SHA1 hash:
b02a114d841673f4b327306f56e75681f8954a56
Link:
https://www.unpac.me/results/ec1ff3a2-2d6c-4902-95a9-8b5b3dd2165f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2c6743d140bd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 2c6743d140bd170b264522e188628f73f1b8e21a1712de6ddca0f44cd5a312a8

(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 (HIGH_ENTROPY_VA)high

Comments