MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc
SHA3-384 hash: f1f8cd77a8694704c392bd725f18d0a399e7362b2c73aa666360371def0a1571587f628844872fb3473aaa921bb0f7ba
SHA1 hash: b293176b6d55fa682852f37cbaa0dce96c9528ff
MD5 hash: 112f5d3a1d148c9bbfe8fd85482db5cd
humanhash: video-nevada-skylark-aspen
File name:9nncBfTB8Kjm7ge.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:685'576 bytes
First seen:2024-03-13 13:59:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:iiGsJTENl3lnrXJ3QR3e2XZwIzNuUtrBP9TDVDdVoo3NUkR:NTxENlxrXiRLXZnzD3XVhVoEh
TLSH T125E41291727C2B53C678B6F84075652843F1664A381AE2ED0ED7B1CB55FEF900AA0F27
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon d4d4d4d4d4d4c4c4 (15 x AgentTesla, 10 x Formbook, 1 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
359
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc.exe
Verdict:
Suspicious activity
Analysis date:
2024-03-13 14:01:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dc08f091-39fe-4232-9cf2-43621fa2302e

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/478917/
Detection(s):
Win.Packed.Formbook-10023145-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/65f1b16cf074ad892e5331d4/reports/8038b572-604b-4f0d-b253-aaea11a6dcbf/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/21dd1e5f-bfb5-4032-8bb7-29a69457b0ee
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1408282
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1408282 Sample: 9nncBfTB8Kjm7ge.exe Startdate: 13/03/2024 Architecture: WINDOWS Score: 100 33 www.beatricesswarthout.xyz 2->33 35 www.taifengtechnologyservice.com 2->35 37 13 other IPs or domains 2->37 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 47 9 other signatures 2->47 11 9nncBfTB8Kjm7ge.exe 3 2->11         started        signatures3 45 Performs DNS queries to domains with low reputation 33->45 process4 signatures5 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 14 9nncBfTB8Kjm7ge.exe 11->14         started        process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 explorer.exe 80 1 14->17 injected process8 dnsIp9 27 taifengtechnologyservice.com 84.32.84.32, 49721, 80 NTT-LT-ASLT Lithuania 17->27 29 www.pocket-option.tech 150.95.255.38, 49715, 80 INTERQGMOInternetIncJP Japan 17->29 31 7 other IPs or domains 17->31 20 WWAHost.exe 17->20         started        process10 signatures11 49 Modifies the context of a thread in another process (thread injection) 20->49 51 Maps a DLL or memory area into another process 20->51 53 Tries to detect virtualization through RDTSC time measurements 20->53 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-03-12 07:38:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgbwj5pawvdhnuouk5dxc62237slslxfuycg3e7x7exhpwkym26a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ns03 rat spyware stealer trojan
Link:
https://tria.ge/reports/240313-ra1kxaee2z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
9518217b208cfca11a2b068cbfb18552033199e5765482b3b083e2a31398bb39
MD5 hash:
aa289b0ba123b74f54e850e6cf597075
SHA1 hash:
60d6cfcab59aed57d9e983d2af885ddc6b767241
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
Parent samples :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 hash:
06a1ae787e808d6287de314be8bec64ef2e0d3bc1bf2ea71ae268c7b8fb19e2d
MD5 hash:
91b39e533d48f5fa25ac604da90b3d8d
SHA1 hash:
f5dadf1e8fcbe64609e4cd78a27e2810f7a6e69e
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
SH256 hash:
c8c1020fe926cc1851b73c1915ad32e2fc393dccb402782aca8f4ea6379ba84d
MD5 hash:
ef7cf89d9ec52b18a8f5b6ee49820f46
SHA1 hash:
dcf9cb9bb3f72ca4b3cc0c00b27bd9ce10b554bb
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
SH256 hash:
9cd7dcdffc8e1f9e422c0e4b37805ba109fedd8c884c3c8b569937f2ccd80b19
MD5 hash:
578a16fe8520b5c6afa6fb9e8bb907cc
SHA1 hash:
814e6741ea4943513adf473bd729ab5dcd3add7d
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
SH256 hash:
a67bf3237381672276195ad6c4593d1697e3ba9235e6f1d082e8d2c2e39421ab
MD5 hash:
f9f814203cb6894c2d1175ce586c35a8
SHA1 hash:
6ad3ad698058eb75c2158bae8ce59e0dc526c473
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
SH256 hash:
998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc
MD5 hash:
112f5d3a1d148c9bbfe8fd85482db5cd
SHA1 hash:
b293176b6d55fa682852f37cbaa0dce96c9528ff
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/d7fd274c-ff51-4f3f-92c9-a7dc21e30b88/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/998364f5e0b5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.66
Link:
https://yomi.yoroi.company/submissions/998364f5e0b54676d1d45747717b5adfe4b92ee5a6046d93f7f92e77d95866bc

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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.

Cape
Cape
https://www.capesandbox.com/analysis/478917/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments