MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5
SHA3-384 hash: b5947b1d696d975aae5df60ba3059c389ec28dae8726049367cbe47eb159fcf506b89270137405d5d1b9b219a1230150
SHA1 hash: 89bed5f613401c5816f3b22816f84d5f8067db3b
MD5 hash: 71415d61dd3a653e017514280a4e05c4
humanhash: august-echo-zulu-four
File name:jets4431.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'155'487 bytes
First seen:2022-09-28 06:35:38 UTC
Last seen:2022-10-06 17:53:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:UAOcZXcxP61ptWw+avL8pnp3qY7daGAuvZG31RMaas/xmR:CH+tWw+S8D3r70QA3XM9n
Threatray 20'210 similar samples on MalwareBazaar
TLSH T158351242B7C1C8F3D1731E354A2AB625A97D7C201F148A5FA3D4596DEA325C36238BB3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 8271cc9696cc7182 (10 x Formbook, 1 x NetWire)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
89BED5F613401C5816F3B22816F84D5F8067DB3B
Verdict:
Malicious activity
Analysis date:
2022-09-28 17:30:21 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/ed36e891-6dfc-42f0-afdb-fb6ad5d79c8b

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/314226/
Detection(s):
SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Adding an access-denied ACE
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/39654/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
formbook greyware nanocore overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/6333eb530d3d21420cc955fb/reports/444ffb34-2e2b-414f-b1cc-5b0bb485f0d0/overview
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/054ad948-753a-4436-810d-5e02adcfd389
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1078952
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Drops PE files with a suspicious file extension
Found API chain indicative of debugger detection
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 711510 Sample: jets4431.exe Startdate: 28/09/2022 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected FormBook 2->38 40 Yara detected AntiVM autoit script 2->40 11 jets4431.exe 29 2->11         started        process3 file4 32 C:\Users\user\AppData\Roaming\...\estrlf.pif, PE32 11->32 dropped 54 Drops PE files with a suspicious file extension 11->54 15 estrlf.pif 2 11->15         started        signatures5 process6 signatures7 56 Multi AV Scanner detection for dropped file 15->56 58 Found API chain indicative of debugger detection 15->58 60 Contains functionality to inject code into remote processes 15->60 62 4 other signatures 15->62 18 RegSvcs.exe 15->18         started        21 RegSvcs.exe 15->21         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 23 explorer.exe 18->23 injected 50 Tries to detect virtualization through RDTSC time measurements 21->50 process10 process11 25 mstsc.exe 23->25         started        signatures12 52 Tries to detect virtualization through RDTSC time measurements 25->52 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/3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-09-27 11:46:27 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hky4yyf5lxfab7dmvvophqfhzthkmefsaat4tw3lixyligda7osq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02f864baf71847c5832c94f396bb14ba3fd5c1b7d96936427c358f37a6cfa105
Formbook
1678611ad4996f718c0a8998ce194dfe117bf47529c4ccad51a6816ecf4f1bb4
Formbook
5c5e4e31bde29168e03fa8cce36bab9b577568137edab59f68f8968616546ed9
Formbook
a806993bf26058dc6cbe82f305945d97dcf5b316115c672774950bcc0626a38d
Formbook
a96ccfc5b5b64660b986d22b9bcc96cb5e178d3d506893bd24a959a5338a4a32
Formbook
aa005608adb8e7e3c775383f20f2608164056713bcbb92d0ec5c99994d8af750
Formbook
aa9c86a823e654e20b42edc829a890f08b0ffffaaa4054ca0033e0b4fae5765b
Formbook
b3a3645cf2d804bebd0d8049b70c95ae545ff06ca2acc9f85721a1d1f3c9b5b8
Formbook
+ 20'200 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:je14 rat spyware stealer trojan
Link:
https://tria.ge/reports/220928-hcw6tsgcfr/
Behaviour
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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c6170086-0ab4-4e4c-81c4-5e1cce5afb9f
Unpacked files
SH256 hash:
823a68456ee4d5d2f1b0f1aa09f1315f93258abf6f7afcc061759e29597e9fd9
MD5 hash:
a39a8df87966e6758325be25896e9041
SHA1 hash:
78c9b0cb38956c0543b3347cbd049c745e99aeb7
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/28518aee-ea42-4999-8630-d289f55abc78/
Parent samples :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 hash:
28b099cdd8bb4089d9b661dc5ef2fe1429d3601ff547fcc1d8a6f9670e87291e
MD5 hash:
eb0e38586cfe2de09f362c8c89702ffb
SHA1 hash:
aa2746f50cf335287d5cf1e006d9b4fc132fd258
Link:
https://www.unpac.me/results/28518aee-ea42-4999-8630-d289f55abc78/
SH256 hash:
3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5
MD5 hash:
71415d61dd3a653e017514280a4e05c4
SHA1 hash:
89bed5f613401c5816f3b22816f84d5f8067db3b
Link:
https://www.unpac.me/results/28518aee-ea42-4999-8630-d289f55abc78/
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/3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest7
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.

File information

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

Malspam

Formbook

Executable exe 3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/314226/

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