MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc
SHA3-384 hash: 9dec955342132a998af5a36f67a6972db8091ab0613a247756bb05f7a747e66d31a06f2c8eb9ed856f8e25e90e187a54
SHA1 hash: ee79dc6d6f0760614a138494e8a4fe6ff4b5d5a1
MD5 hash: 2b704ce97c3df3b2a4b7fd0a848c9603
humanhash: item-robin-batman-uranus
File name:IMAG0093992.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:815'104 bytes
First seen:2021-08-16 12:16:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:PTBYOWDsHgcz9AiPEodT/p+rrlWZBRaZAJNBZfapSHKZLmY5JOEPpBjax:rBt5HgczNHsru7NBZfaUHQHPix
Threatray 7'892 similar samples on MalwareBazaar
TLSH T18105CF7171AB8597F15F8A742538BD5403B231B3B9C6C9391B6A6046CFE9E983F4820F
dhash icon ae53d212daccccca (8 x Formbook, 4 x AsyncRAT, 1 x NetWire)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMAG0093992.exe
Verdict:
Malicious activity
Analysis date:
2021-08-16 12:17:20 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/21416721-b118-4f68-985b-990137dee8ad

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/179542/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f412c2a4-15e1-4c0a-a0cb-1180ea784e28
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/833494
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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 (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 465929 Sample: IMAG0093992.exe Startdate: 16/08/2021 Architecture: WINDOWS Score: 100 31 www.funtimespheres.com 2->31 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 7 other signatures 2->43 11 IMAG0093992.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\IMAG0093992.exe.log, ASCII 11->29 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 15 IMAG0093992.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.pv-step.com 194.58.112.174, 49737, 80 AS-REGRU Russian Federation 18->33 35 www.nedayerasa.com 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-16 12:17:05 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j3kjlcgwgvxwhck2cz2khk2tkemz4tckrl2mqjompuvx3v43766a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3ede9e9bdf0965f93b5351cc4be670b30934bc39aca24a3f3ac5f245f47c5073
Formbook
65a0c46c6663e844e38abc9cb562b1b1e8866be3d1c3616960379693db717463
Formbook
75f6b830aac78a018b89a35b5d7a3b0a33c4f5e4fc7547a335f3a5219dd7b132
Formbook
91cdb947644a5a802adac7583a79e7e560da38839489a02e7464730ff66fd004
Formbook
ab96b6ac9080fe40003b5259931da0e8fae1d5e57d602991d8bb06fa712bdd9b
Formbook
f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74
Formbook
f8f02165547227a6692d503cf1203dcaf2d43b58219bb78cb0e42895f49a8121
Formbook
+ 7'882 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:kkt rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210816-s5kv5a3khe/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.hometowncashbuyersgroup.com/kkt/
Unpacked files
SH256 hash:
5f549d80c3029f9c2779f4b4742943413a7e555f866487e3178908270c8eeda1
MD5 hash:
77c3d2b13f2ea634e72951620143fa43
SHA1 hash:
f440f412d17d9df499c0aa0b524228752e4f5646
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4214a3c9-e55d-4c3f-a2de-2e929b66b375/
Parent samples :
75f6b830aac78a018b89a35b5d7a3b0a33c4f5e4fc7547a335f3a5219dd7b132
65a0c46c6663e844e38abc9cb562b1b1e8866be3d1c3616960379693db717463
ab96b6ac9080fe40003b5259931da0e8fae1d5e57d602991d8bb06fa712bdd9b
f8f02165547227a6692d503cf1203dcaf2d43b58219bb78cb0e42895f49a8121
4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc
b38eadc0a59ed8405656c9445912f644724ed07ce9086e0183a6b086460f20e6
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/4214a3c9-e55d-4c3f-a2de-2e929b66b375/
SH256 hash:
bce9b319c9b5bdd4a1ab2a23a51aa2e2be89c63692d3b1d9c40da58a0a9ffdb9
MD5 hash:
c0e8e3236b5311c0b9015ff3be370b23
SHA1 hash:
32c211319c59d87f92162265d09106a8f3555550
Link:
https://www.unpac.me/results/4214a3c9-e55d-4c3f-a2de-2e929b66b375/
SH256 hash:
4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc
MD5 hash:
2b704ce97c3df3b2a4b7fd0a848c9603
SHA1 hash:
ee79dc6d6f0760614a138494e8a4fe6ff4b5d5a1
Link:
https://www.unpac.me/results/4214a3c9-e55d-4c3f-a2de-2e929b66b375/
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/4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 4ed49588d6356f63895a1674a3ab5351199e4c4a8af4c825cc7d2b7dd79bffbc

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/179542/

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