MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
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SHA256 hash: 5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328
SHA3-384 hash: 5058df912040867c0bc00165c98366189fee52d447e966c37e95e2d0838dad3bcc8b9e743a3a8e52ba7590b32669745c
SHA1 hash: 3118a3ca1b04a7b566af392661e5b29a25daa79b
MD5 hash: b12820f37614880a13b3f756b488d184
humanhash: uranus-florida-speaker-salami
File name:dekont.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:261'067 bytes
First seen:2022-10-19 11:21:03 UTC
Last seen:2022-10-19 12:52:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:mbE/HUbHJRoH/dQbKD3CTQv4mIMxvYfODXUcr:mb/HjS7LkQgPMxwZcr
TLSH T1F44412906200C577DDB20A329D2523EFAFFDD83712725D5793A02A3ABE721A1CD4F961
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
dekont.exe
Verdict:
Malicious activity
Analysis date:
2022-10-19 11:23:07 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/63163630-5af2-4b85-befe-b544ebd7701d

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/321676/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.2389.6157.28933.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for the window
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/43809/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/634fdda07f72336a8d6297af/reports/3d60fbd7-9f83-40f2-a08c-f4c42bc689af/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/f73c7fc6-57c4-4840-8cdf-81238c2e36be
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1093406
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found hidden mapped module (file has been removed from disk)
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 726028 Sample: dekont.exe Startdate: 19/10/2022 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for dropped file 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 4 other signatures 2->52 11 dekont.exe 18 2->11         started        process3 file4 36 C:\Users\user\AppData\...\eolxarhbph.exe, PE32 11->36 dropped 14 eolxarhbph.exe 1 11->14         started        process5 file6 38 C:\Users\user\AppData\Local\Temp\8FD3.tmp, PE32 14->38 dropped 70 Machine Learning detection for dropped file 14->70 72 Found hidden mapped module (file has been removed from disk) 14->72 74 Tries to detect virtualization through RDTSC time measurements 14->74 18 eolxarhbph.exe 14->18         started        21 WerFault.exe 23 9 14->21         started        signatures7 process8 signatures9 54 Modifies the context of a thread in another process (thread injection) 18->54 56 Maps a DLL or memory area into another process 18->56 58 Sample uses process hollowing technique 18->58 60 Queues an APC in another process (thread injection) 18->60 23 explorer.exe 18->23 injected process10 dnsIp11 40 squamouscellcarcinoma.site 64.190.62.22, 49725, 80 NBS11696US United States 23->40 42 td-ccm-neg-87-45.wixdns.net 34.149.87.45, 49726, 80 ATGS-MMD-ASUS United States 23->42 44 3 other IPs or domains 23->44 62 System process connects to network (likely due to code injection or exploit) 23->62 27 msdt.exe 23->27         started        30 autofmt.exe 23->30         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 27->64 66 Maps a DLL or memory area into another process 27->66 68 Tries to detect virtualization through RDTSC time measurements 27->68 32 cmd.exe 1 27->32         started        process15 process16 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2022-10-19 12:22:49 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lkz4amuxwx3cp7425c3cgtexrhadxjxes7jlxftse4tgfimeumua._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/221019-nfzzsafher/
Behaviour
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
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8845f6a7-556d-4737-9f7d-198fd3504066
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/739e4df2-afec-4d3a-be9c-06ab2be3b060/
Parent samples :
5b2bee7d89137e5b5c3eae900446b022c482a5ecd56ede64214ec95498c0f35e
13f17498233c027b2634373a0bd1f1978748102b7cfb798ef52d34c48b92661c
3a48a55ee6f9ace1e0b8042458f9d16deb6ff58970873c2e9f063c60f6821127
dc3f7072eb60a4282bd3f6e8fa600c17a9c9f8ade539111bcadcab024a186455
5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328
1bcbf1dce6780dbfb1b1ad1d86f25d4b7a50063be5b4640f8939085980c4e00c
9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
1e1725100ca63de1addb3e668dbbef572a683beb2bf3c1648181ec1cc3479cf5
SH256 hash:
9aa79e753f5cbbb138e93406b08cb2a41e26b3a2cf1e971ca40af6b183665e1c
MD5 hash:
0bbca0c9d6e4ad08c2e82e127d7026e4
SHA1 hash:
c917b98adf3130bcb238b07ece58508b6394614f
Link:
https://www.unpac.me/results/739e4df2-afec-4d3a-be9c-06ab2be3b060/
SH256 hash:
5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328
MD5 hash:
b12820f37614880a13b3f756b488d184
SHA1 hash:
3118a3ca1b04a7b566af392661e5b29a25daa79b
Link:
https://www.unpac.me/results/739e4df2-afec-4d3a-be9c-06ab2be3b060/
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/5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328

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:meth_get_eip
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Author:Willi Ballenthin

File information

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

Malspam

Formbook

Executable exe 5ab3c03297b5f627ff9ae8b6234c9789c03ba6e497d2bb9672272662a184a328

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/321676/

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