MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3. 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 3 File information Comments
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SHA256 hash: e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3
SHA3-384 hash: 4b924b663182c7fe3275f06affaff2605f1ac24803a37c9c1dba1473f8b2c418e81141c208da81aa30f523e82fc9e0cc
SHA1 hash: 6100986b9e6160b409d0c57b569e8bd31feb5dc2
MD5 hash: e19fc612c2f0cb93d8fc167565f3b9eb
humanhash: bakerloo-rugby-rugby-sweet
File name:proforma invoice PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'312'256 bytes
First seen:2023-10-09 13:47:21 UTC
Last seen:2023-10-09 14:54:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ecf100ecbbefecadd734c79df4bc63f2 (3 x DBatLoader, 2 x Formbook)
ssdeep 24576:vUrkF9ZT6xy9M7HCZmFq/wbgKcQrE/k2+QL5:vUwVk2bL
Threatray 3'635 similar samples on MalwareBazaar
TLSH T1EA557DE5A3448C62E0263A7CCC9AE39505257DDD2D11C8CC5E50E9CF6A7BAE1B8FC063
TrID 28.3% (.SCR) Windows screen saver (13097/50/3)
22.7% (.EXE) Win64 Executable (generic) (10523/12/4)
21.6% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
9.7% (.EXE) Win32 Executable (generic) (4505/5/1)
4.4% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon d8dcfcdcdcdcd4d4 (6 x DBatLoader, 4 x Formbook, 2 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
proforma invoice PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-10-09 14:10:01 UTC
Tags:
dbatloader formbook xloader
Link:
https://app.any.run/tasks/a1ded284-16c9-45e9-8862-dd6af6f88fcd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.37922.23304.26888.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Creating a file
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3
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:
IEInspector Software
Create hunting rule
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1baf515c-3d45-434a-afc9-e37197fd0baf
Result
Threat name:
DBatLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1322204
Signature
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files with a suspicious file extension
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1322204 Sample: proforma_invoice_PDF.exe Startdate: 09/10/2023 Architecture: WINDOWS Score: 100 40 www.wtwvmemphis.com 2->40 42 www.tisml8yn.top 2->42 44 14 other IPs or domains 2->44 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 8 other signatures 2->58 11 proforma_invoice_PDF.exe 1 2 2->11         started        signatures3 process4 file5 38 C:\Users\Public\Libraries\Radzuuyf.PIF, PE32 11->38 dropped 76 Drops PE files with a suspicious file extension 11->76 78 Writes to foreign memory regions 11->78 80 Allocates memory in foreign processes 11->80 82 2 other signatures 11->82 15 colorcpl.exe 2 11->15         started        signatures6 process7 signatures8 84 Modifies the context of a thread in another process (thread injection) 15->84 86 Maps a DLL or memory area into another process 15->86 88 Sample uses process hollowing technique 15->88 90 2 other signatures 15->90 18 explorer.exe 21 26 15->18 injected process9 dnsIp10 46 i-plow.net 216.172.184.196, 49726, 80 UNIFIEDLAYER-AS-1US United States 18->46 48 www.seven-heavens.net 89.31.143.90, 49720, 80 QSC-AG-IPXDE Germany 18->48 50 6 other IPs or domains 18->50 60 System process connects to network (likely due to code injection or exploit) 18->60 22 Radzuuyf.PIF 18->22         started        25 svchost.exe 18->25         started        27 rundll32.exe 18->27         started        29 autoconv.exe 18->29         started        signatures11 process12 signatures13 62 Multi AV Scanner detection for dropped file 22->62 64 Machine Learning detection for dropped file 22->64 66 Writes to foreign memory regions 22->66 74 2 other signatures 22->74 31 colorcpl.exe 22->31         started        68 Modifies the context of a thread in another process (thread injection) 25->68 70 Maps a DLL or memory area into another process 25->70 72 Tries to detect virtualization through RDTSC time measurements 25->72 34 cmd.exe 1 25->34         started        process14 signatures15 92 Modifies the context of a thread in another process (thread injection) 31->92 94 Maps a DLL or memory area into another process 31->94 96 Sample uses process hollowing technique 31->96 36 conhost.exe 34->36         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3/
Threat name:
Win32.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2023-10-09 13:48:05 UTC
File Type:
PE (Exe)
Extracted files:
44
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4wupgokxxv5qpxgkm2nwssr3j3rjfh7d3o7rbrjzjr5qkfcpmtrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0e8a32d068ae867e5296c365c837f273bcd56c48ce93130bb501c25d8e558f39
Formbook
7ca8a122c2de09fc62bd94555fd701e862a65dda15839f37667b699127778f96
Formbook
9784d4f3af63382e92105496844b25bc4e42e92305b7707c3fd6451c98c391f6
Formbook
9cd7ca54fc2b418d2f82093ed798cdd02478830c5b3fb956e59dd2d325e55682
Formbook
ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
Formbook
d47eb4bff603d2015f8dc6512a51e8b37e42c53d7760ceb0bcf34ea875200d14
Formbook
dae2da978ef889f28bb96b4b9f0519f4d04a62517bbefc55320ea8d81c70e3e8
Formbook
f89bdf26235faffcde237bebb15da55250f780d07a87a4304651a2e6b7e7e45a
Formbook
+ 3'625 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:modiloader campaign:qh1n persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/231009-q34btsfc78/
Behaviour
Modifies registry class
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Formbook payload
ModiLoader Second Stage
Formbook
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
70dc1d5e493521be64cbd0b70a29f81f18e2da5473f151e51074a80a5648a80c
MD5 hash:
4c9f54531f6f253a51f0605540892091
SHA1 hash:
ff3c498cf3e35cf2e36cfcb573b4ef6dd9db39e2
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/da88f242-abca-4b72-9b94-bcbe85d7b0cb/
Parent samples :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 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/da88f242-abca-4b72-9b94-bcbe85d7b0cb/
SH256 hash:
e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3
MD5 hash:
e19fc612c2f0cb93d8fc167565f3b9eb
SHA1 hash:
6100986b9e6160b409d0c57b569e8bd31feb5dc2
Link:
https://www.unpac.me/results/da88f242-abca-4b72-9b94-bcbe85d7b0cb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e5a8f33957bd/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/e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3

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:BobSoftMiniDelphiBoBBobSoft
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Author:malware-lu
Rule name:Borland
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Author:malware-lu
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 e5a8f33957bd7b07dcca669b694a3b4ee2929fe3dbbf10c5394c7b05144f64e3

(this sample)

  
Delivery method
Distributed via e-mail attachment

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