e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1

General

Target

e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe
Size

243KB
MD5

0bece19c2a2b7d3dcd691e5f2ffc8718
SHA1

2122f87b606a87e17d8febb20f1eecb89574a235
SHA256

e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1
SHA512

df8555398881db4ef161b27121ed310e5aab47de7e23d29b9b489ef54bb1d9b2c7cddd5c2a54a001b3bca8b8be67b186cad2d1450ce522f89720afe21d7ac41d
SSDEEP

6144:+JvsqUSKin24h79o4xM5ZOARD7kWsTXN6biN9u2x/:wsVi2c79o4xM57R4dMcQ21

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2236	Wfdwimw.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	Wfdwimw.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	Wfdwimw.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	Wfdwimw.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	Wfdwimw.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\Limit[1].htm	Wfdwimw.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Wfdwimw.exe	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe
File opened for modification	C:\Windows\Wfdwimw.exe	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Wfdwimw.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Wfdwimw.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Wfdwimw.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Wfdwimw.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Wfdwimw.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Wfdwimw.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Wfdwimw.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	Wfdwimw.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1368	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe
1368	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1964	1368	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe	86
PID 1368 wrote to memory of 1964	1368	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe	86
PID 1368 wrote to memory of 1964	1368	e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe	86

C:\Users\Admin\AppData\Local\Temp\e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe
"C:\Users\Admin\AppData\Local\Temp\e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\4040.vbs"
  2⤵
  PID:1964

C:\Windows\Wfdwimw.exe
C:\Windows\Wfdwimw.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2236

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\4040.vbs

Filesize
500B

MD5
676f38ba75b5e23407ff8f9122d1fe4e

SHA1
7df215aa5b7b56ba428e3283f47e511b4bc6be71

SHA256
90de47101c13296d9515e8f7f1c800859c3295bec7e9a15eb3be9a894fec9d11

SHA512
bdfccf3ff2d8acf292fb0421ccaf2fb418d44b3f4bd01c2595cfb4e407a52183a68b91a68c4f381bdf4577ddf957a61dc728a68ced02ee64ce670748a52ccf3d

Download Submit
C:\Windows\Wfdwimw.exe

Filesize
243KB

MD5
0bece19c2a2b7d3dcd691e5f2ffc8718

SHA1
2122f87b606a87e17d8febb20f1eecb89574a235

SHA256
e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1

SHA512
df8555398881db4ef161b27121ed310e5aab47de7e23d29b9b489ef54bb1d9b2c7cddd5c2a54a001b3bca8b8be67b186cad2d1450ce522f89720afe21d7ac41d

Download Submit
C:\Windows\Wfdwimw.exe

Filesize
243KB

MD5
0bece19c2a2b7d3dcd691e5f2ffc8718

SHA1
2122f87b606a87e17d8febb20f1eecb89574a235

SHA256
e595a990403e44662313115efee4ddf7bab193e165a9ad76fba2398b1470dea1

SHA512
df8555398881db4ef161b27121ed310e5aab47de7e23d29b9b489ef54bb1d9b2c7cddd5c2a54a001b3bca8b8be67b186cad2d1450ce522f89720afe21d7ac41d

Download Submit

Analysis

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