1e2470cf5042f4ff269c98c7a33dd27ca36ddeed91d9fb18df591f40a2d18131

General

Target

Halkbank.pdf.exe
Size

720KB
MD5

da69ec614d0d3885c5a88cac8a75facd
SHA1

19508ae57240da4c9b69ed9bee3d74a4db6d4fe0
SHA256

1e2470cf5042f4ff269c98c7a33dd27ca36ddeed91d9fb18df591f40a2d18131
SHA512

00c456ef068b3f93a26a9b983f72ebbe1a98833eefec8571286aa1968ad5b34bad947d3f9647df53edbe13ccee7847890153523c7f9e4f8383e9311fe3fe0e49
SSDEEP

12288:yvV+s1bSQT6tjjdB4Y08uQcdcU00f2WCYO+DDQ6ZI7XpiKdPhBxz0AwPg3BqPPw4:ytCvuLf2YOjKI7kKhhBWA0IqPtfGH5er

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	Halkbank.pdf.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	Halkbank.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3408 set thread context of 1324	3408	Halkbank.pdf.exe	96

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

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

pid	Process
2416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3408	Halkbank.pdf.exe
3408	Halkbank.pdf.exe
3408	Halkbank.pdf.exe
3408	Halkbank.pdf.exe
3408	Halkbank.pdf.exe
3408	Halkbank.pdf.exe
2216	powershell.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
2216	powershell.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe
1324	Halkbank.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3408	Halkbank.pdf.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	1324	Halkbank.pdf.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 2216	3408	Halkbank.pdf.exe	91
PID 3408 wrote to memory of 2216	3408	Halkbank.pdf.exe	91
PID 3408 wrote to memory of 2216	3408	Halkbank.pdf.exe	91
PID 3408 wrote to memory of 2416	3408	Halkbank.pdf.exe	93
PID 3408 wrote to memory of 2416	3408	Halkbank.pdf.exe	93
PID 3408 wrote to memory of 2416	3408	Halkbank.pdf.exe	93
PID 3408 wrote to memory of 4308	3408	Halkbank.pdf.exe	95
PID 3408 wrote to memory of 4308	3408	Halkbank.pdf.exe	95
PID 3408 wrote to memory of 4308	3408	Halkbank.pdf.exe	95
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96
PID 3408 wrote to memory of 1324	3408	Halkbank.pdf.exe	96

C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ouFPJorC.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2216
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ouFPJorC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2EB1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2416
- C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe"
  2⤵
  PID:4308
- C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank.pdf.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lgtuq5na.mud.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2EB1.tmp

Filesize
1KB

MD5
1d03334b69d66ff9a6c9015eb53349bf

SHA1
4446e9f5350ca4ade880d57c6922016a40a364d3

SHA256
3a262676e7e0b5bea5d82c946cbbd65aba81dd839eda3a22372fad8cb83c7118

SHA512
98d669819ea209b7d0e3a02a84c60abc9af7c82b81df2c3eb5c0a9c4d1c50366b6818f52313b3a74ebdab4c48175451d4f5677db5aa4c3fb9e677712f554091f

Download Submit
memory/1324-164-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1324-163-0x00000000011E0000-0x000000000152A000-memory.dmp

Filesize
3.3MB

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memory/1324-148-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2216-158-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/2216-184-0x00000000076A0000-0x00000000076AE000-memory.dmp

Filesize
56KB

Download
memory/2216-144-0x0000000002830000-0x0000000002866000-memory.dmp

Filesize
216KB

Download
memory/2216-145-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

Download
memory/2216-146-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

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memory/2216-186-0x0000000007790000-0x0000000007798000-memory.dmp

Filesize
32KB

Download
memory/2216-149-0x0000000005350000-0x0000000005978000-memory.dmp

Filesize
6.2MB

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memory/2216-185-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

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memory/2216-151-0x00000000052B0000-0x00000000052D2000-memory.dmp

Filesize
136KB

Download
memory/2216-180-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/2216-157-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/2216-183-0x00000000076F0000-0x0000000007786000-memory.dmp

Filesize
600KB

Download
memory/2216-182-0x00000000074F0000-0x00000000074FA000-memory.dmp

Filesize
40KB

Download
memory/2216-181-0x000000007F330000-0x000000007F340000-memory.dmp

Filesize
64KB

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memory/2216-165-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/2216-166-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

Download
memory/2216-167-0x0000000006740000-0x0000000006772000-memory.dmp

Filesize
200KB

Download
memory/2216-168-0x0000000071410000-0x000000007145C000-memory.dmp

Filesize
304KB

Download
memory/2216-178-0x0000000006720000-0x000000000673E000-memory.dmp

Filesize
120KB

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memory/2216-179-0x0000000007AC0000-0x000000000813A000-memory.dmp

Filesize
6.5MB

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memory/3408-137-0x00000000051B0000-0x00000000051C0000-memory.dmp

Filesize
64KB

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memory/3408-134-0x0000000005500000-0x0000000005AA4000-memory.dmp

Filesize
5.6MB

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memory/3408-135-0x0000000004F50000-0x0000000004FE2000-memory.dmp

Filesize
584KB

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memory/3408-133-0x0000000000450000-0x000000000050A000-memory.dmp

Filesize
744KB

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memory/3408-136-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/3408-139-0x0000000007E80000-0x0000000007F1C000-memory.dmp

Filesize
624KB

Download
memory/3408-138-0x00000000051B0000-0x00000000051C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads