MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce
SHA3-384 hash: 8bac7d142333df3b0d45326f82d2ee763f24032354cdf1cfbc40e5d41356d3e4e6c3d2b8b1717bd4cc2aa3e9fe43700e
SHA1 hash: 119958f7b3ef16fb5e5eadc868f217c515391cac
MD5 hash: a7c3bf5b0c2e4be2de65785ec0878530
humanhash: july-floor-august-kitten
File name:ultimogeniture.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:884'784 bytes
First seen:2023-10-09 18:17:13 UTC
Last seen:2023-10-09 18:52:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 671f2a1f8aee14d336bab98fea93d734 (182 x GuLoader, 4 x Formbook, 4 x RemcosRAT)
ssdeep 24576:INPx3TpHMm2LcNN89YCHz6uc1L9J8xVCT5ATqY2BXY6+g7:mBTdMm2YNNcYoz6VL9J8xVCT5AT2Y6N
Threatray 1'291 similar samples on MalwareBazaar
TLSH T11E1523B0E6A0CCF3CB7756389355962ECEF4FD20A56753578B413E88BE236C10A0A394
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter Racco42
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
IT IT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.27593.20242.19590.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control guloader lolbin overlay packed remcos shell32 threat virus
Link:
https://www.filescan.io/uploads/652443da5befb75cf36261ed/reports/2a61175c-6e5b-461d-aff0-5ed11084afc2/overview
Verdict:
Malicious
Labled as:
Trojan.Makoob
Link:
https://www.hybrid-analysis.com/sample/99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce
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/22490d4c-6cdd-4d09-8c1c-92ba3b9c0050
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1322369
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1322369 Sample: ultimogeniture.exe Startdate: 09/10/2023 Architecture: WINDOWS Score: 100 36 www.dd55hh.xyz 2->36 38 www.webuyhouses24.com 2->38 40 20 other IPs or domains 2->40 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 62 3 other signatures 2->62 10 ultimogeniture.exe 36 2->10         started        signatures3 60 Performs DNS queries to domains with low reputation 36->60 process4 file5 34 C:\Users\user\AppData\Local\...\System.dll, PE32 10->34 dropped 74 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->74 76 Tries to detect Any.run 10->76 14 ultimogeniture.exe 6 10->14         started        signatures6 process7 dnsIp8 48 googlehosted.l.googleusercontent.com 142.250.217.129, 443, 50027 GOOGLEUS United States 14->48 50 drive.google.com 142.250.72.142, 443, 50026 GOOGLEUS United States 14->50 78 Modifies the context of a thread in another process (thread injection) 14->78 80 Tries to detect Any.run 14->80 82 Maps a DLL or memory area into another process 14->82 84 Queues an APC in another process (thread injection) 14->84 18 RAVCpl64.exe 14->18 injected signatures9 process10 signatures11 52 Sample uses process hollowing technique 18->52 21 WWAHost.exe 13 18->21         started        process12 signatures13 64 Tries to steal Mail credentials (via file / registry access) 21->64 66 Tries to harvest and steal browser information (history, passwords, etc) 21->66 68 Writes to foreign memory regions 21->68 70 3 other signatures 21->70 24 explorer.exe 4 1 21->24 injected 28 firefox.exe 21->28         started        30 firefox.exe 21->30         started        32 XPtffYCLkpNfKUuftK.exe 21->32 injected process14 dnsIp15 42 triplemshipssupplies.com 173.254.104.74, 50033, 50034, 50035 UNIFIEDLAYER-AS-1US United States 24->42 44 apelmanis33.site 172.96.187.57, 50043, 50044, 50045 SINGLEHOP-LLCUS Canada 24->44 46 9 other IPs or domains 24->46 72 System process connects to network (likely due to code injection or exploit) 24->72 signatures16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-10-02 08:49:40 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
17 of 22 (77.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thtzx7k5el373sgyhxwmo6oa6zsmfqvn4xdmejnbgjce4cgb5xha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900
Formbook
22ae731061f7359c7467be0f7a710013516ed356a79b2e23adec7c57a12624a2
Formbook
3026185f9dd7b26700a92b8d5d2eb94b8f7f246b944fcb49c8e8bdc41c2c6094
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3a6ec75b656e165939ee0d1f985678cb1799151e33449bba28c6a830ead01e3a
Formbook
52208fdea02024ab93aebbc72f62d3b105644d5afcb4d8de494f001f87a03a9d
Formbook
5e6b89915432b64a3205f68d49db2ffc02007600a2a82a439aff431a95fcbeef
Formbook
74c460852f392fbdd2ef8d83d9461371228d37fba88a6431fd205ee20bccf622
Formbook
8349d0c4d9914eeb0d1619a23d5bfe062d00f94e64883483d12b0054d27ac376
Formbook
9979157caf31a2349ad5512d9aa7e749649232ceb16f9c410655438fa87de552
Formbook
c36591c7c0ef136b66dcf2955035ffc43ccd7fa6d6ce8c65f747dbe0aff7814e
Formbook
+ 1'281 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231009-wxk6yshd78/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1
MD5 hash:
dd87a973e01c5d9f8e0fcc81a0af7c7a
SHA1 hash:
c9206ced48d1e5bc648b1d0f54cccc18bf643a14
Link:
https://www.unpac.me/results/80a5d57a-f1ce-47d4-8aac-2d0fffbfef0d/
SH256 hash:
99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce
MD5 hash:
a7c3bf5b0c2e4be2de65785ec0878530
SHA1 hash:
119958f7b3ef16fb5e5eadc868f217c515391cac
Link:
https://www.unpac.me/results/80a5d57a-f1ce-47d4-8aac-2d0fffbfef0d/
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/99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

Executable exe 99e79bfd5d22f7fdc8d83decc779c0f664c2c2ade5c6c225a132444e08c1edce

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments