5e6257951c22e3a84dc43ca8c4c1662ee6dbea213ddedf332a381d6324dd2bb5

General

Target

E-Posta Bildirimi pdf.exe
Size

1.8MB
MD5

844c618571ec3391014ae741256c55b4
SHA1

8f8bdc69c3f9b7e254a92acedf804bd28f1fba9d
SHA256

8a56ba9e9d571e7e4d1998b8f5771afccc88bbcdccfbe5f10fc8fe337f789215
SHA512

e830955dd198e02e452f4d68c67e20c5f616c6fe6e94790e8400844318ca507b08606109ce74564f4fa9797212ddbd4ef1c7d0d54480085d499b7343f28075b2

Score

9^/10

rezer0 upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll	acprotect

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/948-57-0x00000000062C0000-0x0000000006426000-memory.dmp	rezer0

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll	upx

Loads dropped DLL 1 IoCs

Processes:

E-Posta Bildirimi pdf.exe

pid process

1740 E-Posta Bildirimi pdf.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

E-Posta Bildirimi pdf.exe

description pid process target process

PID 948 set thread context of 1740 948 E-Posta Bildirimi pdf.exe E-Posta Bildirimi pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2000 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

E-Posta Bildirimi pdf.exe

pid process

948 E-Posta Bildirimi pdf.exe
948 E-Posta Bildirimi pdf.exe
948 E-Posta Bildirimi pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

E-Posta Bildirimi pdf.exeE-Posta Bildirimi pdf.exe

description pid process

Token: SeDebugPrivilege 948 E-Posta Bildirimi pdf.exe
Token: SeDebugPrivilege 1740 E-Posta Bildirimi pdf.exe

pid	process
1740	E-Posta Bildirimi pdf.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 948 set thread context of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe

pid	process
2000	schtasks.exe

pid	process
948	E-Posta Bildirimi pdf.exe
948	E-Posta Bildirimi pdf.exe
948	E-Posta Bildirimi pdf.exe

description	pid	process
Token: SeDebugPrivilege	948	E-Posta Bildirimi pdf.exe
Token: SeDebugPrivilege	1740	E-Posta Bildirimi pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

E-Posta Bildirimi pdf.exe

description	pid	process	target process
PID 948 wrote to memory of 2000	948	E-Posta Bildirimi pdf.exe	schtasks.exe
PID 948 wrote to memory of 2000	948	E-Posta Bildirimi pdf.exe	schtasks.exe
PID 948 wrote to memory of 2000	948	E-Posta Bildirimi pdf.exe	schtasks.exe
PID 948 wrote to memory of 2000	948	E-Posta Bildirimi pdf.exe	schtasks.exe
PID 948 wrote to memory of 1880	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1880	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1880	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1880	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe
PID 948 wrote to memory of 1740	948	E-Posta Bildirimi pdf.exe	E-Posta Bildirimi pdf.exe

C:\Users\Admin\AppData\Local\Temp\E-Posta Bildirimi pdf.exe
"C:\Users\Admin\AppData\Local\Temp\E-Posta Bildirimi pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SxjjiZWECxmzG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0AA.tmp"
2⤵
- Creates scheduled task(s)
PID:2000

C:\Users\Admin\AppData\Local\Temp\E-Posta Bildirimi pdf.exe
"{path}"
2⤵
PID:1880

C:\Users\Admin\AppData\Local\Temp\E-Posta Bildirimi pdf.exe
"{path}"
2⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:1740

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB0AA.tmp
Filesize
1KB

MD5
bf9b466b943bd4d74a02abb2a89e7341

SHA1
eb0e85e76f6b89be242e2cd8ed815d06f8cebcb6

SHA256
d42632de92aaca98cf927a86155d601255db2b063b4992c0eb1ab3ef1e14c090

SHA512
76848f1ff4b5716190978e92ac49580ffdcaafbacb0fa18f909231367198cae813d3b3fe24a47e128ffb5e20de1739c052248bd267fcb689509536c7c3dc3c63

Download Submit
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll
Filesize
594KB

MD5
e81aeac387c5db32b7f9b07d15e788e0

SHA1
829be6eaf1cb0d82b2ddfc98272e1087f4a7a7c3

SHA256
44f31f99f048bfc5195937353b5207332e455bcd5a722bcfd32cacfd93f60f06

SHA512
cc6a96325a01c50c059706a1f4156f109e502ef9c0b0f5de209d1f52e7cc973cebc027f57ed988e9d1b8fca62746b60ee7430d608de95cdd0e5ac3cb61fbe32e

Download Submit
memory/948-54-0x0000000001100000-0x00000000012DA000-memory.dmp

Filesize
1.9MB

Download
memory/948-55-0x0000000005CB0000-0x0000000005E44000-memory.dmp

Filesize
1.6MB

Download
memory/948-56-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/948-57-0x00000000062C0000-0x0000000006426000-memory.dmp

Filesize
1.4MB

Download
memory/1740-84-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-90-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-64-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-63-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-65-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-66-0x000000000055A26E-mapping.dmp

Download
memory/1740-70-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-68-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-72-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-74-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-76-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-78-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-80-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-82-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-60-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-88-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-86-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-61-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-92-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-94-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-96-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-98-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-100-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-104-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-102-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-108-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-106-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-112-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-110-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-116-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-114-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-120-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-118-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-124-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/1740-122-0x0000000000400000-0x0000000000560000-memory.dmp

Filesize
1.4MB

Download
memory/2000-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads