MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac
SHA3-384 hash: cf310febc5a0af5fc17ca05edc51f454a74b89e996559080e0cbcd5af8b0a0f7200964a662943bdf710b0f19fdb20c60
SHA1 hash: 9aaa5209476907a311d9905ab0566aadd833be3b
MD5 hash: fe8637b7f28206897219305735fdc407
humanhash: comet-august-bluebird-fifteen
File name:E-DEKONT_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:352'508 bytes
First seen:2023-03-27 10:27:28 UTC
Last seen:2023-04-03 05:55:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 6144:H6+/tV8E/1E0OrEl4SrruvJp6SRaitECiNHITLVnxbSHl55HMlPLbQf:Pn8E/1EOl4aeJpFECy5Hl5WV8f
Threatray 1'092 similar samples on MalwareBazaar
TLSH T1EA7412461A52CDEBC4B717368FB92B065EA9C85A7490131B2F753B08FF72086935F283
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)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
3
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
E-DEKONT_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-03-27 10:42:36 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e1501d01-8591-46b1-bdad-def4409d74ce

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/377849/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file
Creating a file in the %AppData% directory
Delayed reading of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
83%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64216fb59c109cf74b300e70/reports/4eef5a45-33a1-4aca-a5de-0ce78a7212fe/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac
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/e30633e6-0242-488c-b3e5-6caa52dc7a6f
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202618
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 835522 Sample: E-DEKONT_pdf.exe Startdate: 27/03/2023 Architecture: WINDOWS Score: 100 34 www.tmcgroup.africa 2->34 36 www.peterslawonline.com 2->36 38 25 other IPs or domains 2->38 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 7 other signatures 2->62 11 E-DEKONT_pdf.exe 5 62 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\MapiProxy_InUse.dll, PE32 11->30 dropped 32 C:\Users\user\AppData\Local\...\System.dll, PE32 11->32 dropped 70 Tries to detect Any.run 11->70 15 E-DEKONT_pdf.exe 6 11->15         started        signatures6 process7 dnsIp8 46 34.138.169.8, 49839, 80 ATGS-MMD-ASUS United States 15->46 48 Modifies the context of a thread in another process (thread injection) 15->48 50 Tries to detect Any.run 15->50 52 Maps a DLL or memory area into another process 15->52 54 2 other signatures 15->54 19 explorer.exe 3 1 15->19 injected signatures9 process10 dnsIp11 40 www.credit-cards-54889.com 185.53.179.91, 49864, 80 TEAMINTERNET-ASDE Germany 19->40 42 www.bestpetfinds.com 112.196.98.174, 49853, 80 QTLTELECOM-AS-APQuadrantTeleventuresLimitedIN India 19->42 44 13 other IPs or domains 19->44 64 System process connects to network (likely due to code injection or exploit) 19->64 23 colorcpl.exe 19->23         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 23->66 68 Maps a DLL or memory area into another process 23->68 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-03-27 04:44:46 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fa4eqm6lj5lzgk2tisryeromtfmudv74ztbypix7u7zjlsirbcwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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06243274174960778e1adac528d0c2641cf742fa2ba0759c9fe762f7a0692aff
Formbook
60f594736fc96f0657680d022bd9b9117a4a7d08c1e80812b29d64fa69f814a3
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83104e0cf5b8f50ec9724e7a27ba87ef39ecbfd81d4f456d42b7fd06fd9c28e9
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856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf
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9739b15bd8493e99e281d62d213ddc4cce684b1e833af4634932c57a669035fc
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a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f
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ab080c6c62ba54b560f3feb271626ae0fe1804834f51eeac008f576f4e1299a0
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c6dd2982f43096248e29e645e15fc4aff780b86932b517c33a776325382f1515
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d202c27ed2da0f1864f0ec0d760a0afb406b27b637ced263cd0962385786eab0
Formbook
e75b09e0fc7a0826ccea5469d66443bfcc421b1b6246e9a0d13bb38e21333e56
Formbook
+ 1'082 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mi94 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/230327-mhpfdsfa81/
Behaviour
Gathers network information
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
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
a70579542d6b798d089178b67186e67dad682b2c9810218250afe5c4de3f17bf
MD5 hash:
f54b715f79530061e46192d533efbc51
SHA1 hash:
8b1f556625e397e57c9a6c41a450bb5831d8d2c7
Link:
https://www.unpac.me/results/dbcc8e46-cbb2-4659-bf50-babb57997f14/
SH256 hash:
28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac
MD5 hash:
fe8637b7f28206897219305735fdc407
SHA1 hash:
9aaa5209476907a311d9905ab0566aadd833be3b
Link:
https://www.unpac.me/results/dbcc8e46-cbb2-4659-bf50-babb57997f14/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28384833cb4f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac

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 28384833cb4f57932b5344a38245cc995941d7fcccc387a2ffa7f295c91108ac

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377849/

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