e2a1386069229c6a4f15d8cea2ceaafe0ba1a7b4503aad69fd6e45d9a0279823

General

Target

Halkbank_Ekstre_20240613_075839_278831.exe
Size

902KB
MD5

eda5836ae8925c04aff0a91d9dd58a3c
SHA1

2f6f2f78db12779a33a55e45881e0c2153b9c411
SHA256

e2a1386069229c6a4f15d8cea2ceaafe0ba1a7b4503aad69fd6e45d9a0279823
SHA512

9c4953e6e9ef8a7c6bd00ded5e0cfad48f86a1407123c5fb50e414a87d9b8183db8ae6b009caaefbd8c4d252b33d258aba39db9670f6dd4d4cb76592fe06b70a
SSDEEP

24576:sNmyC5T2GSfiqJ1871z7ByfCgd3wM4LyZsVAo:t392Df1b3Rewo

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2172	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	2684	WerFault.exe	31

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1700	Halkbank_Ekstre_20240613_075839_278831.exe
2172	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	Halkbank_Ekstre_20240613_075839_278831.exe
Token: SeDebugPrivilege	2172	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2172	1700	Halkbank_Ekstre_20240613_075839_278831.exe	28
PID 1700 wrote to memory of 2172	1700	Halkbank_Ekstre_20240613_075839_278831.exe	28
PID 1700 wrote to memory of 2172	1700	Halkbank_Ekstre_20240613_075839_278831.exe	28
PID 1700 wrote to memory of 2172	1700	Halkbank_Ekstre_20240613_075839_278831.exe	28
PID 1700 wrote to memory of 268	1700	Halkbank_Ekstre_20240613_075839_278831.exe	30
PID 1700 wrote to memory of 268	1700	Halkbank_Ekstre_20240613_075839_278831.exe	30
PID 1700 wrote to memory of 268	1700	Halkbank_Ekstre_20240613_075839_278831.exe	30
PID 1700 wrote to memory of 268	1700	Halkbank_Ekstre_20240613_075839_278831.exe	30
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 1700 wrote to memory of 2684	1700	Halkbank_Ekstre_20240613_075839_278831.exe	31
PID 2684 wrote to memory of 2772	2684	Halkbank_Ekstre_20240613_075839_278831.exe	32
PID 2684 wrote to memory of 2772	2684	Halkbank_Ekstre_20240613_075839_278831.exe	32
PID 2684 wrote to memory of 2772	2684	Halkbank_Ekstre_20240613_075839_278831.exe	32
PID 2684 wrote to memory of 2772	2684	Halkbank_Ekstre_20240613_075839_278831.exe	32

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2172
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe"
  2⤵
  PID:268
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240613_075839_278831.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 36
    3⤵
    - Program crash
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1700-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/1700-1-0x0000000000120000-0x0000000000208000-memory.dmp

Filesize
928KB

Download
memory/1700-2-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/1700-3-0x00000000006C0000-0x00000000006DA000-memory.dmp

Filesize
104KB

Download
memory/1700-4-0x00000000006E0000-0x00000000006F0000-memory.dmp

Filesize
64KB

Download
memory/1700-5-0x0000000005D10000-0x0000000005D9A000-memory.dmp

Filesize
552KB

Download
memory/1700-12-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-11-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2684-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2684-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-8-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

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