MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27
SHA3-384 hash: f920da60c8734cfd6fd7288756f8a0327a40a192cb3dabf454b05b1d7887e9f318101c25a1e57d683873d4763795fa1f
SHA1 hash: 6c1e3bb8db7d7b6dee111f58c6a7f27888668ae3
MD5 hash: 600b3dec0a4eef3773d85d32f3473ce2
humanhash: summer-autumn-bakerloo-crazy
File name:Nova narudzba u prilogu.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:492'032 bytes
First seen:2022-05-23 06:15:05 UTC
Last seen:2022-05-27 17:47:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:DobSSZI9T3RVIJ89ZJBEqUQCdYVfXHmy1EQ4Zmd:MeSZI9bognUQCdivmy1EUd
Threatray 8'276 similar samples on MalwareBazaar
TLSH T105A4020B2BC7A1E5C4BD6931F3FC21A545F6A35B1661639B858013EDEF4A307AB064B3
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
7
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Nova narudzba u prilogu.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 02:58:10 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/89ef8cad-5948-414b-be20-920bc814e36d

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/273532/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Launching a process
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Moving of the original file
Unauthorized injection to a recently created process
Enabling autorun
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed replace.exe wacatac
Link:
https://www.filescan.io/uploads/628b2670945ebb7eb176b5e1/reports/4c7403c7-b3cb-41a6-8f09-1a486252eda0/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:
Malicious
Link:
https://analyze.intezer.com/analyses/dd79d47a-3d1f-4973-aba7-001491f776b8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/999532
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Drops PE files to the startup folder
Exploit detected, runtime environment dropped PE file
Exploit detected, runtime environment starts unknown processes
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 632025 Sample: Nova narudzba u prilogu.exe Startdate: 23/05/2022 Architecture: WINDOWS Score: 100 52 www-bing-com.dual-a-0001.a-msedge.net 2->52 54 dual-a-0001.a-msedge.net 2->54 56 canonicalizer.ucsuri.tcs 2->56 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for dropped file 2->64 66 Antivirus / Scanner detection for submitted sample 2->66 68 8 other signatures 2->68 10 Nova narudzba u prilogu.exe 4 2->10         started        signatures3 process4 file5 48 C:\Users\...48ova narudzba u prilogu.exe.log, ASCII 10->48 dropped 82 Moves itself to temp directory 10->82 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->84 14 java.exe 5 10->14         started        18 cmd.exe 1 10->18         started        signatures6 process7 file8 50 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 14->50 dropped 86 Exploit detected, runtime environment starts unknown processes 14->86 88 Exploit detected, runtime environment dropped PE file 14->88 90 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->90 20 cmd.exe 3 14->20         started        92 Uses ping.exe to sleep 18->92 94 Drops PE files to the startup folder 18->94 96 Uses ping.exe to check the status of other devices and networks 18->96 24 reg.exe 1 1 18->24         started        26 PING.EXE 1 18->26         started        29 conhost.exe 18->29         started        signatures9 process10 dnsIp11 44 C:\Users\user\AppData\Roaming\...\java.exe, PE32 20->44 dropped 46 C:\Users\user\...\java.exe:Zone.Identifier, ASCII 20->46 dropped 70 Uses ping.exe to sleep 20->70 31 java.exe 2 20->31         started        34 PING.EXE 1 20->34         started        37 conhost.exe 20->37         started        39 PING.EXE 1 20->39         started        72 Creates an undocumented autostart registry key 24->72 60 127.0.0.1 unknown unknown 26->60 file12 signatures13 process14 dnsIp15 98 Writes to foreign memory regions 31->98 100 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->100 102 Injects a PE file into a foreign processes 31->102 41 AddInProcess32.exe 31->41         started        58 192.168.2.1 unknown unknown 34->58 signatures16 process17 signatures18 74 Modifies the context of a thread in another process (thread injection) 41->74 76 Maps a DLL or memory area into another process 41->76 78 Tries to detect virtualization through RDTSC time measurements 41->78 80 Queues an APC in another process (thread injection) 41->80
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-05-22 19:12:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eysvuvseoo3frplxmgpqqir2firmilxor3cdyqnq7prdgxza54tq._file
Verdict:
malicious
Similar samples:
2058cdf174be4f26f3c41c44bc614cccb89a10d1bdebf2c4e64e404a268fe5de
Formbook
35b37b30779ff09b08ee04b1a284ec172dbf9767bd6afac8ade45ac09fe186b7
Formbook
5f3a6968e284a2cfa90ca4318cf7385b9ea468d3bc566a80e81d6cfb44ef5b18
Formbook
93d2edbc498f6f8689223bcb079143a97627efe9c1f7b23687a94a1eaf223d78
Formbook
9e719c4dd5e1086d5197fded7b8cdb0d3d592c0636b0d469fcda22c9723e8e7c
Formbook
9eb3c2eecc4f7c57c124e9d8514cf45577ad229c4a25e1120da16aaffa2be45b
Formbook
b0a8c058c8b913e2f67b40e4606c5dd913c858854f3dd77f7e82a4066ecc293d
Formbook
c77fcbc6550d3d9c6e805b0ad7e2658ea6cf814780ca60b2299ce833c02c1a92
Formbook
cb5e0fe4cb4e9950b51042471b67b3bf9f8dcba4f201b1053ba69cb1ac9b54b2
Formbook
+ 8'266 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:euv4 loader persistence rat suricata
Link:
https://tria.ge/reports/220523-gzy39sbhd5/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Modifies WinLogon for persistence
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c0be9b5cd44890ba4b8ef2d96cde84541bbcde7247a90e30b0e42fa2964853a5
MD5 hash:
111f57c483d27d8fc75ba32c4b4735c4
SHA1 hash:
99f826371014d4e8bc7b1d68043c2a5c08993db6
Link:
https://www.unpac.me/results/586bd395-2232-4e21-90e0-323636fbb364/
SH256 hash:
7d170109f352f251d7ac012882e005b059b0db5ecce7520acf7be2ba8f13792a
MD5 hash:
72403055ee098f50bcc8a238fdbef878
SHA1 hash:
eb5ed9b38f5a23bb00b221acf3f7233aa2e9299d
Link:
https://www.unpac.me/results/586bd395-2232-4e21-90e0-323636fbb364/
SH256 hash:
c611a6ceb263401ed18ff93961bd6d0cdf8757e48d8e76b13943e85b9d3b5a0b
MD5 hash:
f9b293305bd04eee511c0ffd0e7f29d7
SHA1 hash:
fd981a9537a903422311f582defc1c8fd97248af
Link:
https://www.unpac.me/results/586bd395-2232-4e21-90e0-323636fbb364/
SH256 hash:
b1a4f59d5b1ddef29779839d7d02297fd1d2869514f72b028db5e5953bd925f5
MD5 hash:
dbf292a6fd340f123284f85164389376
SHA1 hash:
8e5afcd8fa842208e72c224f97f549860cca499d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/586bd395-2232-4e21-90e0-323636fbb364/
Parent samples :
b1fe85520c015f8f7344de2923392bfbf216bfa02f9db21c8aa4bb20e7e9f192
51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed
26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27
db130f1177379a6c6fc9a87eba59870115f8888d6737f76aba9ea77346d0006c
aa4dc5baf652fff47985d21f8936ff56200d66ff037b12288dd907fa7b1a78ec
SH256 hash:
26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27
MD5 hash:
600b3dec0a4eef3773d85d32f3473ce2
SHA1 hash:
6c1e3bb8db7d7b6dee111f58c6a7f27888668ae3
Link:
https://www.unpac.me/results/586bd395-2232-4e21-90e0-323636fbb364/
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/26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27

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
Create hunting rule
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.

Malspam

Formbook

Executable exe 26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/273532/

Comments