MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6
SHA3-384 hash: feff290bb1e3bf1ace9864918abd924338c7633886a9b02dbca4c2f63a113f352524886104b9a3aba6c9df9e3f5525c5
SHA1 hash: 2ec9b8eca34d3577f65c1f1b2bfde89e404dbe30
MD5 hash: 9c3adaa8348718ee8e229b5064bb34de
humanhash: solar-bakerloo-michigan-pasta
File name:2023-11-23.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:766'464 bytes
First seen:2023-11-23 14:34:22 UTC
Last seen:2023-11-23 16:18:08 UTC
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:T1CFIELXGkJl8G+3ucp0WTXfJv47Eu5zrj3DIQyehwDoSZPGs5DM5Crhg+gkRVHP:T1CFIQ2k7HbWTvJgf5/thMoPMDoCrRc
Threatray 320 similar samples on MalwareBazaar
TLSH T1C6F4010477BD8F66CABB5BF65020420147F2A96F3576E3898CC260EB1671F112E92F67
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)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
322
Origin country :
US US
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/459872/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.27844.4425.UNOFFICIAL
Create hunting rule

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:
packed
Link:
https://www.filescan.io/uploads/655f631b92fc3dea63983b49/reports/3109e34e-f97a-48eb-8378-c571d57900bd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6
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/30a44f00-c56e-4898-b307-c9d4eeeb13c6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1346978
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1346978 Sample: 2023-11-23.exe Startdate: 23/11/2023 Architecture: WINDOWS Score: 100 28 www.jantanslot.xyz 2->28 30 www.winenglish.net 2->30 32 22 other IPs or domains 2->32 40 Snort IDS alert for network traffic 2->40 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 48 6 other signatures 2->48 10 2023-11-23.exe 3 2->10         started        signatures3 46 Performs DNS queries to domains with low reputation 28->46 process4 signatures5 58 Injects a PE file into a foreign processes 10->58 13 2023-11-23.exe 10->13         started        16 2023-11-23.exe 10->16         started        18 2023-11-23.exe 10->18         started        process6 signatures7 60 Maps a DLL or memory area into another process 13->60 20 bguhQideccbPn.exe 13->20 injected process8 dnsIp9 34 www.jefw392.top 160.124.250.92, 49778, 49779, 49780 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 20->34 36 mindfulpages.online 84.32.84.32, 49762, 49763, 49764 NTT-LT-ASLT Lithuania 20->36 38 14 other IPs or domains 20->38 23 ARP.EXE 13 20->23         started        process10 signatures11 50 Tries to steal Mail credentials (via file / registry access) 23->50 52 Tries to harvest and steal browser information (history, passwords, etc) 23->52 54 Writes to foreign memory regions 23->54 56 2 other signatures 23->56 26 firefox.exe 23->26         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-23 14:35:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v5ahfddjc2qqdc3kyctghhvy2nl7cjj5lsqhhofoxqmn77nz7lda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
50fc82d5c17dd18d51f9c65c690592c4af3717d213fec18bc06543729bc464bd
Formbook
68a36aaf1639ea16df035f8d02db1861718af75420c3be35cec42958e33834c8
Formbook
9829382c100af443239c2823f7db79049221f5d1ccffe06620b8cd3ed1fcaf07
Formbook
aa7afebfd032006687eddefc5578bbc1933f1477aeaef5a17427677a4de08d95
Formbook
b5081a6bb5cd550a99f314c6dd7e76cd217473ddfec2f65c1b5ec13a000680b7
Formbook
da49519a5670d282de449cee9f55bfdfb034d4fd011e7420152ed3e841a00372
Formbook
+ 310 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231123-rx1jesbb41/
Behaviour
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
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
ca05bf8d9cd7dc3b711b7c0a7fd8286a20a329377780bc1d5cbb699f361fca93
MD5 hash:
a3e94c204829ba0ca80dd45403d1b12f
SHA1 hash:
cd807e3ddb77f5a800e53d32f54798d66abf5783
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
SH256 hash:
76774c008dcb53cd38f54e2db9d8ee9d1d571ac4cc822c758f1a656b2522d183
MD5 hash:
3a76bb4b358850b3d57102619fed8805
SHA1 hash:
bc623c97bedc6f964e533c41dae12245831066ed
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
SH256 hash:
b32f64139e9cfc3afa129ec4bd0adced5c90f5bb1d3cde1d1a6415165b875370
MD5 hash:
9385019216c64b66fb1e4ceae3ca9486
SHA1 hash:
ad74faf0fc06b34ff4ddd1f44b8cdea500c8fef6
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
SH256 hash:
bf89c394845a0c64b82a1570d681e885a8e38ebe6b879ee06df4bd9ddab25284
MD5 hash:
d0b31361df8d5308ac5aa39afb2a38ef
SHA1 hash:
6d08246340b746cc708bacaaf930d26ef264c4c3
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
SH256 hash:
af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6
MD5 hash:
9c3adaa8348718ee8e229b5064bb34de
SHA1 hash:
2ec9b8eca34d3577f65c1f1b2bfde89e404dbe30
Link:
https://www.unpac.me/results/a80803f5-0a1e-48dd-8f45-e4c507c1bd1a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/af40728c6916/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6

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/459872/

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