MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments 1
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SHA256 hash: 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
SHA3-384 hash: 78aeeba2b4bbd566d072608d2993c236bcbdf36f7947ff9421106f377607cce74f71f341f77773dc0ccc16770e13a78f
SHA1 hash: 52ecf628c9fe25f2eedca8da56aa0785958e2638
MD5 hash: f1d94fcc611053cd5162e70dc36fddfa
humanhash: victor-west-chicken-april
File name:f1d94fcc611053cd5162e70dc36fddfa
Download: download sample
Signature Formbook
Create hunting rule
File size:700'416 bytes
First seen:2021-10-15 08:15:45 UTC
Last seen:2021-10-15 09:51:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Mvf39PILzSNmLaryTrp6WQmJmcS32fKt:KIXSNGaryTrp6WjJu2fY
Threatray 10'535 similar samples on MalwareBazaar
TLSH T127E4A455F343AC12A557567350E051E3A10868C7E8988339EFB3BAA358DE7C05B8CBDE
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE44.xlsx
Verdict:
Malicious activity
Analysis date:
2021-10-15 06:50:48 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/f63e0e0b-8909-46a4-ad55-064e95047e76

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/197708/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.17521.11328.11958.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616938c6fd35fe780c428068/reports/bc23e48d-3814-43c4-87d6-9e0c366de544/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a5a33ff3-2858-4dd5-9be0-4b3aeb4d4467
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871032
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 503460 Sample: NaKNHCaGjZ Startdate: 15/10/2021 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 8 other signatures 2->50 10 NaKNHCaGjZ.exe 6 2->10         started        process3 file4 32 C:\Users\user\AppData\Roaming\HhpQDpq.exe, PE32 10->32 dropped 34 C:\Users\user\AppData\Local\...\tmpD35C.tmp, XML 10->34 dropped 36 C:\Users\user\AppData\...36aKNHCaGjZ.exe.log, ASCII 10->36 dropped 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 10->64 66 Tries to detect virtualization through RDTSC time measurements 10->66 68 Injects a PE file into a foreign processes 10->68 14 NaKNHCaGjZ.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 70 Modifies the context of a thread in another process (thread injection) 14->70 72 Maps a DLL or memory area into another process 14->72 74 Sample uses process hollowing technique 14->74 76 Queues an APC in another process (thread injection) 14->76 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 www.zambiadawn.com 19->38 40 www.westatesmarking.com 19->40 42 ghs.google.com 142.250.203.115, 49695, 80 GOOGLEUS United States 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 25 colorcpl.exe 19->25         started        signatures10 process11 signatures12 54 Self deletion via cmd delete 25->54 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-10-15 08:16:08 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
67cb5ce28fc7e9a5dae6c7be6da453844762fdea43d985cfc761c1ded66487f0
Formbook
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
daac858e9ca5b0c8044385c2d94cbef17c41b0bd5c569ad7e03f0a51b4caab7a
Formbook
db4d5bd36f923fdd47daf48ace971f47e9764d27a2f88241f09c754c042efc28
Formbook
f136f4f9c59c4ff2582063222c6df106a3d1e3d7d9220ff73e3cb2ec487fe1db
Formbook
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
Formbook
+ 10'525 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hs3h evasion rat spyware stealer trojan
Link:
https://tria.ge/reports/211015-j56fmsbder/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.alefisrael.com/hs3h/
Unpacked files
SH256 hash:
3fdc3e95250a85b401fd290a36949ab2b65a68e87f14840cee11298563277cac
MD5 hash:
25a22d0c20252efdee71059d52299e60
SHA1 hash:
e8fe27788212e6154332bc769e00b13f6653b322
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2b2c1d43-71c9-4c47-af10-a43d2106cc4d/
Parent samples :
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
4e25735dc713c78458f181caa0f09a6ea2ca79a708a3b22f52d1c936806de251
63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/2b2c1d43-71c9-4c47-af10-a43d2106cc4d/
SH256 hash:
57d8330445dea2cfaee48f726631a37aa34dc956544a6bcfb827465e8fc17c69
MD5 hash:
a9fa0ae497d324d532c3c590db9f495e
SHA1 hash:
369f84e212a6d26d633029b5b8bae67138b6d190
Link:
https://www.unpac.me/results/2b2c1d43-71c9-4c47-af10-a43d2106cc4d/
SH256 hash:
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
MD5 hash:
f1d94fcc611053cd5162e70dc36fddfa
SHA1 hash:
52ecf628c9fe25f2eedca8da56aa0785958e2638
Link:
https://www.unpac.me/results/2b2c1d43-71c9-4c47-af10-a43d2106cc4d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348

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:pe_imphash
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Rule name:pe_imphash
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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.

Web download

Formbook

Executable exe 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1679956/
Cape
Cape
https://www.capesandbox.com/analysis/197708/

Comments


Avatar
zbet commented on 2021-10-15 08:15:47 UTC

url : hxxp://103.232.54.181/g00gle/.lsass.exe