8c47fd75583a867892ae56e911d8e29497e68a902a5197850d47a6d262597916

Analysis

max time kernel
121s
max time network
142s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23/08/2023, 01:32

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General

Target

Ydhpqzk.exe
Size

872KB
MD5

8e35dcf7017dd6c8142c620d335af447
SHA1

047df46dfe49db275d42fe05e6573885ff1d607d
SHA256

a5e1869c80baf7fa0f4290cf0339f63b1f1cd8c5a5b8851110cf523917109738
SHA512

b3b25af6a986df6aa1a143e038ea70f3691507236e21e5fef9c9b9ca74baacf6d8ff64cc8e60791e8664f055cb993edcc82729fc65c77de70c51abb7a50a2758
SSDEEP

24576:0ZsEl5sHWKZmUJgJlZv9yrJ/oSFLukHku:0Zl9rUJgZGJN+u

Score

10^/10

persistence

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.sachingandhiarchitects.com
Port:
587
Username:
[email protected]
Password:
devi060911

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cudsayebu = "C:\\Users\\Admin\\AppData\\Roaming\\Cudsayebu.exe"	Ydhpqzk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Windows\CurrentVersion\Run\EbJgI = "C:\\Users\\Admin\\AppData\\Roaming\\EbJgI\\EbJgI.exe"	MSBuild.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2292 set thread context of 2512	2292	Ydhpqzk.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2512	MSBuild.exe
2512	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	Ydhpqzk.exe
Token: SeDebugPrivilege	2512	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28
PID 2292 wrote to memory of 2512	2292	Ydhpqzk.exe	28

C:\Users\Admin\AppData\Local\Temp\Ydhpqzk.exe
"C:\Users\Admin\AppData\Local\Temp\Ydhpqzk.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
61KB

MD5
e56ec378251cd65923ad88c1e14d0b6e

SHA1
7f5d986e0a34dd81487f6439fb0446ffa52a712e

SHA256
32ccf567c07b62b6078cf03d097e21cbf7ef67a4ce312c9c34a47f865b3ad0a0

SHA512
2737a622ca45b532aebc202184b3e35cde8684e5296cb1f008e7831921be2895a43f952c1df88d33011a7b9586aafbd88483f6c134cb5e8e98c236f5abb5f3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
17718be0412944fd668c1b3eae30aab9

SHA1
2d841b1df36f2b8ec8261f4094b2e2df76a65910

SHA256
697b24df264685609ff7e208c6d2f116dcb16c4b7b68e0173ff98891054288ed

SHA512
b70733045d9f75dd35a28ae94db717b4a430d38c7b2c7306513d7a0c037b3c5b9c5f0f3e2a3a9d1052227daeb506531ecaca79fee9121091dc65e322fd50509f

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabC8AE.tmp

Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarCB82.tmp

Filesize
163KB

MD5
19399ab248018076e27957e772bcfbab

SHA1
faef897e02d9501146beb49f75da1caf12967b88

SHA256
326842dd8731e37c8c27a08373c7ac341e6c72226cc850084e3a17d26675f3c9

SHA512
6d5b12ec637ef4223fdd0e271cdc9f860b060ff08d380bba546ac6962b1d672003f9ae9556d65282d8083e830d4277bad8d16443720716077e542ab0262b0103

Download Submit
memory/2292-55-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download
memory/2292-54-0x0000000000990000-0x0000000000A70000-memory.dmp

Filesize
896KB

Download
memory/2292-56-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download
memory/2292-57-0x0000000004FD0000-0x000000000509A000-memory.dmp

Filesize
808KB

Download
memory/2292-58-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-61-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-59-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-63-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-65-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-69-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-71-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-67-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-73-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-75-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-77-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-79-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-81-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-83-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-85-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-89-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-87-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-91-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-93-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-95-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-97-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-99-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-101-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-103-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-105-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-107-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-109-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-111-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-113-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-117-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-115-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-119-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-121-0x0000000004FD0000-0x0000000005095000-memory.dmp

Filesize
788KB

Download
memory/2292-1131-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download
memory/2292-1135-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/2292-1136-0x0000000000870000-0x00000000008B6000-memory.dmp

Filesize
280KB

Download
memory/2292-1137-0x0000000004190000-0x00000000041DC000-memory.dmp

Filesize
304KB

Download
memory/2292-1150-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download
memory/2512-1154-0x0000000073E40000-0x000000007452E000-memory.dmp

Filesize
6.9MB

Download
memory/2512-1155-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2512-1156-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/2512-1224-0x0000000073E40000-0x000000007452E000-memory.dmp

Filesize
6.9MB

Download
memory/2512-1225-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download