MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
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SHA256 hash: 13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c
SHA3-384 hash: 91ebf60d66965fdce0ccda9177f426fc2bca413c32b7d2ca18259b6f149c071260f7c9de26207db7b286c285e017b6d0
SHA1 hash: 99e18bf2c90e4bbdd4fd8c0d9a1a435057a36b36
MD5 hash: ad19eb4829708f873b5ece0ee843be1e
humanhash: item-oklahoma-mars-football
File name:SA00007898 - Sipariş Formu.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'250'663 bytes
First seen:2022-10-10 12:14:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:0AOcZ2i7NOOZQos965c2A842TI27Fnj5HUSIOg0+MkYGZ:iARG93/83h95HPnk
TLSH T131451203B3C58832C5722E325E27E7256D7C7D202E24DA1FA7D45A2DEE325916225BE3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f0d8ec9898f0d8aa (9 x Formbook, 6 x NanoCore, 3 x Vjw0rm)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/318382/
Detection(s):
SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Adding an access-denied ACE
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/42226/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/63440cc829700e7ac65cb5ac/reports/f4ba2b90-8692-4f74-bfff-60d751fed08f/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/70c6f7d1-107e-4173-a937-73191baf883c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1087362
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 719939 Sample: SA00007898 - Sipari#U015f F... Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 52 3 other signatures 2->52 12 SA00007898 - Sipari#U015f Formu.exe 3 28 2->12         started        process3 file4 36 C:\Users\user\AppData\...\mehbadmpab.exe, PE32 12->36 dropped 15 wscript.exe 1 12->15         started        process5 process6 17 mehbadmpab.exe 2 15->17         started        signatures7 38 Multi AV Scanner detection for dropped file 17->38 40 Writes to foreign memory regions 17->40 42 Allocates memory in foreign processes 17->42 44 2 other signatures 17->44 20 RegSvcs.exe 17->20         started        23 RegSvcs.exe 17->23         started        process8 signatures9 54 Modifies the context of a thread in another process (thread injection) 20->54 56 Maps a DLL or memory area into another process 20->56 58 Sample uses process hollowing technique 20->58 60 2 other signatures 20->60 25 explorer.exe 20->25 injected 27 mstsc.exe 23->27         started        process10 process11 29 cmstp.exe 25->29         started        signatures12 62 Modifies the context of a thread in another process (thread injection) 29->62 64 Maps a DLL or memory area into another process 29->64 66 Tries to detect virtualization through RDTSC time measurements 29->66 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-10 12:15:48 UTC
File Type:
PE (Exe)
Extracted files:
163
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpyxjgbdhqbhwjrug45axuprs6duqeblpt5xtdxvfu2mjc4smyoa._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:et02 rat spyware stealer trojan
Link:
https://tria.ge/reports/221010-pewreabhgn/
Behaviour
Modifies registry class
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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4bc213c7-b082-4c52-8702-c1ee342d754b
Unpacked files
SH256 hash:
4119ded25b9d01e546ee42d7a45082c2504ea991f6eccb7c74427a9321c1fb5a
MD5 hash:
74b9bd019c741c26889aa89a6a2d6456
SHA1 hash:
a9e8ebbd7a8fbd51aed0fc08a50f11bb91b5b644
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8042c9ad-2918-4ee5-936b-60e9e413b00b/
Parent samples :
5b2bee7d89137e5b5c3eae900446b022c482a5ecd56ede64214ec95498c0f35e
13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c
3a48a55ee6f9ace1e0b8042458f9d16deb6ff58970873c2e9f063c60f6821127
dc3f7072eb60a4282bd3f6e8fa600c17a9c9f8ade539111bcadcab024a186455
5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328
1bcbf1dce6780dbfb1b1ad1d86f25d4b7a50063be5b4640f8939085980c4e00c
9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
1e1725100ca63de1addb3e668dbbef572a683beb2bf3c1648181ec1cc3479cf5
SH256 hash:
a0fa9403829fada662c766694ea82e9a37f117d97cc3c469344b0f84e67e61b9
MD5 hash:
c2ff905c77432fe282af0ed95d41e5bc
SHA1 hash:
adb7371df7eba519474a0c0a95908a9709229a6e
Link:
https://www.unpac.me/results/8042c9ad-2918-4ee5-936b-60e9e413b00b/
SH256 hash:
13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c
MD5 hash:
ad19eb4829708f873b5ece0ee843be1e
SHA1 hash:
99e18bf2c90e4bbdd4fd8c0d9a1a435057a36b36
Link:
https://www.unpac.me/results/8042c9ad-2918-4ee5-936b-60e9e413b00b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/13f17498233c/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/13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/318382/

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