MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: 59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38
SHA3-384 hash: e41b41f37543fe3371355255b2f97de475ed3cce66f58c84c011c508866b9d8e31e5c5bac4e3f19861def45ab1a3a566
SHA1 hash: 6c5e3a37fa8fe6e7314332edd551fde30615d1e1
MD5 hash: 78304100c1b61ed7a82435e2577f97b7
humanhash: oven-wyoming-island-carpet
File name:JC211103A.exe
Download: download sample
Signature Formbook
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File size:1'030'144 bytes
First seen:2022-07-27 05:59:28 UTC
Last seen:2022-07-27 06:50:58 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 24576:uU1MlwGGXXRitmeIFdNSve8ViK/vNNec4d208qx:uU12GSvhiKHNNeZoq
TLSH T19B25BF1572F84201E8BB8B39D07209048BB5FD5B64E9FB6E1E8478F52973782C914F6B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 0101251153352140 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/294513/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.19144.22652.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62e0d46ee1151aa3633edc1f/reports/8ea8dac9-f149-4491-8cba-6891af7d4561/overview
Result
Verdict:
UNKNOWN
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/62df092d-d3b9-42ed-abb0-980f458b716e
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1041593
Signature
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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: 674088 Sample: JC211103A.exe Startdate: 27/07/2022 Architecture: WINDOWS Score: 100 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 8 other signatures 2->50 10 JC211103A.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\Roaming\RaLRkD.exe, PE32 10->36 dropped 38 C:\Users\user\...\RaLRkD.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmpA7EC.tmp, XML 10->40 dropped 42 C:\Users\user\AppData\...\JC211103A.exe.log, ASCII 10->42 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 10->52 54 Adds a directory exclusion to Windows Defender 10->54 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 JC211103A.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 JC211103A.exe 10->21         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 Queues an APC in another process (thread injection) 14->72 23 explorer.exe 14->23 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 process9 29 colorcpl.exe 23->29         started        signatures10 60 Modifies the context of a thread in another process (thread injection) 29->60 62 Maps a DLL or memory area into another process 29->62 64 Tries to detect virtualization through RDTSC time measurements 29->64 32 cmd.exe 1 29->32         started        process11 process12 34 conhost.exe 32->34         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-07-27 02:10:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
28 of 41 (68.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lgrizxry7fqkdtylwldxkgnmror2hrigyljb5kup2y7bgpnz5i4a._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:ck12 rat spyware stealer trojan
Link:
https://tria.ge/reports/220727-gqbavaedd2/
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:
908b90cb963cb4cf2812e25d47afef0e42b466ed97fd6c1a4ac2e75ca6e82e06
MD5 hash:
2647389288eb7b913709f5abf38549eb
SHA1 hash:
59f9e62337a5a86c1c696b1eeb086c6fdea099fa
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
Parent samples :
59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38
fac0d50307e72ddb6bddb0865c4053d9a9bb691641a12989594f71f0e6137d1f
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
SH256 hash:
163cfcdd3167a3357948acfb4fbdde0dcf1c48b16c8701578b03ebd9d86dd34f
MD5 hash:
95a57df611756f5f1f0eb168d2297c5c
SHA1 hash:
c41f7f25f9c45e0f9cfe4dab94dd7aa5f13c13a2
Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
SH256 hash:
63440b0da92bf24e70dc1abb27863d74a22e7114eaae0264592e138073a8a308
MD5 hash:
3faa5946c0fc836554fc322906368677
SHA1 hash:
b310f56efe8c8689d89ad10b304ab2e2b04b9497
Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
SH256 hash:
e564513c43380315992640814660840a5b4703eb1bdd83e4bfb41adc8b00a952
MD5 hash:
745a8ebc59de416f9fd30feff3a73c8c
SHA1 hash:
929a6c83ae8973d863cf4640a979b86da829b988
Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
SH256 hash:
59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38
MD5 hash:
78304100c1b61ed7a82435e2577f97b7
SHA1 hash:
6c5e3a37fa8fe6e7314332edd551fde30615d1e1
Link:
https://www.unpac.me/results/f5e5ebd2-9b68-4925-b1cb-f02d04d1216a/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/59a28cde38f9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 59a28cde38f960a1cf0bb2c77519ac8ba3a3c506c2d21eaa8fd63e133db9ea38

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/294513/

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