MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf. 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: 18


Intelligence 18 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf
SHA3-384 hash: fbce9ae88a4296ed14e346072379de21355fd82798f0116082e85f77721c7d28ad0cf5cc85cadabab13193569e2debad
SHA1 hash: e3d61876bdc015fdffd7a133b35ccfb39376faa6
MD5 hash: aaea53e893dab95857e1ecaad78bb4ff
humanhash: quebec-apart-uniform-oranges
File name:OOLU27169061523.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'227'264 bytes
First seen:2023-06-18 13:24:44 UTC
Last seen:2023-06-19 07:42:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:WeMzK1BcikOf/SIt6ZNg+ZFrekCjSbODbeF92LDRzxW8:WeN7kESIbBxxLzh
TLSH T12B45C43D58BE5237D570C6B98F94F866F054E3B332922C3AA4D3528A461BD4B36C613E
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)
File icon (PE):PE icon
dhash icon dadad2caa2b6a2c0 (3 x Formbook, 1 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
279
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
OOLU27169061523.exe
Verdict:
Malicious activity
Analysis date:
2023-06-18 13:26:17 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/724e88ca-471a-499e-bf08-60f0d694cc95

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/400177/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67535068.8306.13147.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/648f05b068c0f9be1f551964/reports/f20a3d0e-b11e-44f4-90de-53e8ff9c6ae3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6fd41e1b-0efc-425e-a8b2-7689f7cc17f0
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1256857
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 889877 Sample: OOLU27169061523.exe Startdate: 18/06/2023 Architecture: WINDOWS Score: 100 75 Snort IDS alert for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 8 other signatures 2->81 10 OOLU27169061523.exe 7 2->10         started        14 UFOfUWrReFq.exe 5 2->14         started        process3 dnsIp4 51 C:\Users\user\AppData\...\UFOfUWrReFq.exe, PE32 10->51 dropped 53 C:\Users\...\UFOfUWrReFq.exe:Zone.Identifier, ASCII 10->53 dropped 55 C:\Users\user\AppData\Local\...\tmp6658.tmp, XML 10->55 dropped 57 C:\Users\user\...\OOLU27169061523.exe.log, ASCII 10->57 dropped 89 Uses schtasks.exe or at.exe to add and modify task schedules 10->89 91 Writes to foreign memory regions 10->91 93 Allocates memory in foreign processes 10->93 95 Adds a directory exclusion to Windows Defender 10->95 17 MSBuild.exe 10->17         started        20 powershell.exe 21 10->20         started        22 powershell.exe 18 10->22         started        24 schtasks.exe 1 10->24         started        59 192.168.2.1 unknown unknown 14->59 97 Multi AV Scanner detection for dropped file 14->97 99 Machine Learning detection for dropped file 14->99 101 Injects a PE file into a foreign processes 14->101 26 MSBuild.exe 14->26         started        28 schtasks.exe 14->28         started        file5 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 17->67 69 Maps a DLL or memory area into another process 17->69 71 Sample uses process hollowing technique 17->71 73 2 other signatures 17->73 30 explorer.exe 1 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 28->40         started        process9 dnsIp10 61 www.taiyienergyhealing.com 38.238.159.2, 49701, 80 COGENT-174US United States 30->61 63 www.psychicstandupcomedy.com 30->63 65 4 other IPs or domains 30->65 103 System process connects to network (likely due to code injection or exploit) 30->103 42 cmstp.exe 30->42         started        45 cscript.exe 30->45         started        signatures11 process12 signatures13 83 Modifies the context of a thread in another process (thread injection) 42->83 85 Maps a DLL or memory area into another process 42->85 87 Tries to detect virtualization through RDTSC time measurements 42->87 47 cmd.exe 42->47         started        process14 process15 49 conhost.exe 47->49         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf/
Threat name:
ByteCode-MSIL.Trojan.Negasteal
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Status:
Malicious
First seen:
2023-06-15 10:52:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=flhz43fd4qkpdgz2hijbzzmu4likbr2vqsvbeopm4adecyuw23hq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:jy95 rat spyware stealer trojan
Link:
https://tria.ge/reports/230618-qnyg2age7y/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
9c71c7f1c86dd2b7a5d51eb9368c97eb2ce0a5647b38b1df9afaa72693bbd702
MD5 hash:
b73e5e776548680bf2d90815a33aac62
SHA1 hash:
7b91729880512e37eb3273e8779ac57d7a277fe1
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
Parent samples :
2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf
2cea4635be71ebe2ff0d26948adfd11d7b8a945bce7ac4d459435f777bc4bf22
35e53fdc9e554c33ffa134b23eb74b04b2bc07a2eaca797f4af2e467979eb34d
091305d3595b7324e7fb674b6120cdb142a6196e796f890fd625e76a014211e8
ec07b80aca87a969c2f7c5c5a6ff490cb510c27dc68781e96facfafe9cbfb03a
SH256 hash:
dd5e77d2d62b95bc33ea04d9bcdb8e6ee98abbf15deb3e27cb637d92a53e742e
MD5 hash:
2a05543fdb4982ed9afe74b753225b34
SHA1 hash:
35ae832b26fd79141325b62c44a4ca4f2ea8a531
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
SH256 hash:
54ffe7ba12a025db4dc698015be713f43fafdf31577c6115da667fae8e40cc21
MD5 hash:
d8f078863cbf5c51806cfd82e5f8976c
SHA1 hash:
d24f636c9d69ee8208f8be67b7e5d63981f12d95
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
SH256 hash:
f8dbc6077f6b01c6eec334061d687ff1b291a2aa5513cf1e0b5bde4a8dbc5588
MD5 hash:
15aab611795bcbf2758052944013be1a
SHA1 hash:
772a1002b111e117cf3b1e9f0cabda4894777399
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
SH256 hash:
90abc1235306796e82f284392509f1cd6c9150b8fa2b93b5cd976537462c7b53
MD5 hash:
363cc1ac1fa18f653a353d6e8cbc18ae
SHA1 hash:
63670df5c3909c16060eae0e74b491f1985ea37f
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
SH256 hash:
2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf
MD5 hash:
aaea53e893dab95857e1ecaad78bb4ff
SHA1 hash:
e3d61876bdc015fdffd7a133b35ccfb39376faa6
Link:
https://www.unpac.me/results/4e2e6225-70d2-4b31-b4ee-7315502685ef/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2acf9e6ca3e4/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/2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf

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:pe_imphash
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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 2acf9e6ca3e414f19b3a3a121ce594e2d0a0c75584aa1239ece006416296d6cf

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/400177/

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