MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311
SHA3-384 hash: ea0ff6943071ccb79adbfa400c16a60287383615004f1ca45e3dd4d8ace0e79edbfc1c39a463e051a9fce4daceebf645
SHA1 hash: 591d81f6e2c7cac6b60882ae7e38818baece2b95
MD5 hash: 2aad3885980d11177a59dc99ee180cd5
humanhash: fruit-social-monkey-muppet
File name:PO-57119-pdf-.exe
Download: download sample
Signature Formbook
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File size:676'352 bytes
First seen:2023-01-20 01:17:45 UTC
Last seen:2023-01-20 02:27:30 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:XRnu0b+NoexY/6p+ve4MlAzTy+7HMIlazp5c81Tl:XR3+NNx86peeJIW+7sF081Tl
TLSH T1B3E48B45567B83E6C4B90EB0153CA81426B26CD187ACB13EBC477DBE8CEA71F14A5B13
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-57119-pdf-.exe
Verdict:
Malicious activity
Analysis date:
2023-01-20 01:18:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5a9edad8-56c3-46ef-92e5-200d8c2f047e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/354794/
Detection(s):
SecuriteInfo.com.Trojan.GenericKDZ.96699.6968.4474.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/63c9ebca1c9cbf7d62507ea6/reports/2f96fbe2-fa3c-4fc2-901c-94d60afdf992/overview
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/60e8ba0f-f6b0-4593-b18c-88e55ded1fd4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155216
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
Performs DNS queries to domains with low reputation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
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 signatures2 2 Behavior Graph ID: 787948 Sample: PO-57119-pdf-.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 78 Snort IDS alert for network traffic 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for URL or domain 2->82 84 9 other signatures 2->84 10 PO-57119-pdf-.exe 7 2->10         started        14 HaCjqszGxB.exe 5 2->14         started        process3 file4 50 C:\Users\user\AppData\...\HaCjqszGxB.exe, PE32 10->50 dropped 52 C:\Users\...\HaCjqszGxB.exe:Zone.Identifier, ASCII 10->52 dropped 54 C:\Users\user\AppData\Local\...\tmp332D.tmp, XML 10->54 dropped 56 C:\Users\user\...\PO-57119-pdf-.exe.log, ASCII 10->56 dropped 92 Uses schtasks.exe or at.exe to add and modify task schedules 10->92 94 Adds a directory exclusion to Windows Defender 10->94 96 Tries to detect virtualization through RDTSC time measurements 10->96 16 PO-57119-pdf-.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        98 Multi AV Scanner detection for dropped file 14->98 100 Machine Learning detection for dropped file 14->100 102 Injects a PE file into a foreign processes 14->102 23 HaCjqszGxB.exe 14->23         started        25 schtasks.exe 1 14->25         started        27 HaCjqszGxB.exe 14->27         started        29 HaCjqszGxB.exe 14->29         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 16->64 66 Maps a DLL or memory area into another process 16->66 68 Sample uses process hollowing technique 16->68 70 Queues an APC in another process (thread injection) 16->70 31 explorer.exe 2 6 16->31 injected 35 conhost.exe 19->35         started        37 conhost.exe 21->37         started        39 conhost.exe 25->39         started        process8 dnsIp9 58 www.dupaxi.xyz 184.94.215.211, 49718, 80 VXCHNGE-NC01US United States 31->58 60 ab-daily.com 217.182.100.92, 49722, 80 OVHFR France 31->60 62 3 other IPs or domains 31->62 72 System process connects to network (likely due to code injection or exploit) 31->72 74 Performs DNS queries to domains with low reputation 31->74 76 Uses ipconfig to lookup or modify the Windows network settings 31->76 41 explorer.exe 31->41         started        44 ipconfig.exe 31->44         started        signatures10 process11 signatures12 86 Modifies the context of a thread in another process (thread injection) 41->86 88 Maps a DLL or memory area into another process 41->88 90 Tries to detect virtualization through RDTSC time measurements 41->90 46 cmd.exe 1 41->46         started        process13 process14 48 conhost.exe 46->48         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2023-01-17 11:44:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yannggvklknst7bchtnwnpvxtinmz7vh6vqj6fe5oiyftuyc2miq._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:a09e rat spyware stealer trojan
Link:
https://tria.ge/reports/230120-bnyepshh38/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d27cca09bc9c42bec002b3416b73965fd718b28c81ce9e262913e907ce458833
MD5 hash:
e4231c3a128edb95b63b80418fbeeb30
SHA1 hash:
96cc8fe6281b8fab5af3dff964a4f9ab48809271
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/f5c92a45-db7f-454c-8756-2646f2685688/
Parent samples :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 hash:
1c0072bd0c8fbf0e27d145a0ee7e34428936c2ddeba929d3f60e352891e7e0c6
MD5 hash:
b2d0625c46714e40a6a38238659ea9ed
SHA1 hash:
dc43d5d539eab67b7e3109d0e4894e099a1a18f8
Link:
https://www.unpac.me/results/f5c92a45-db7f-454c-8756-2646f2685688/
SH256 hash:
54d781f0dee6692c47390edf1ada295fb17a7e80ed5ccd58ab14c6ddf80a0ad8
MD5 hash:
4f6caebd865502f7c8046fbae3284c61
SHA1 hash:
be357e832bf6f61454875b37a1759cf1c5fa5ca4
Link:
https://www.unpac.me/results/f5c92a45-db7f-454c-8756-2646f2685688/
SH256 hash:
54bc48ff693d530c7df2af0f189e3b72f31e7da3b60c1c6c55148952d4acaf6d
MD5 hash:
153b8513df201025da7457d475c7414a
SHA1 hash:
b91ed91b25300818882fef10a3de679268a33d11
Link:
https://www.unpac.me/results/f5c92a45-db7f-454c-8756-2646f2685688/
SH256 hash:
3393c34b67935716457bf350c5748318be56f192e544b6857aaa7c1a88acedc5
MD5 hash:
7389b094a5d6b2e02283db86bb25efad
SHA1 hash:
769b69dd027fe9ff575a42d4a105a972c9b55fbc
Link:
https://www.unpac.me/results/f5c92a45-db7f-454c-8756-2646f2685688/
SH256 hash:
c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311
MD5 hash:
2aad3885980d11177a59dc99ee180cd5
SHA1 hash:
591d81f6e2c7cac6b60882ae7e38818baece2b95
Link:
https://www.unpac.me/results/f5c92a45-db7f-454c-8756-2646f2685688/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311

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
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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 c01ad31aaa5a9b29fc223cdb66beb79a1accfea7f5609f149d723059d302d311

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/354794/

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