kronos | fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8

Analysis

max time kernel
139s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 03:10

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General

Target

fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
Size

688KB
MD5

55e82d0a0ee538ff911e36730ee8da40
SHA1

ffe4ffda16f1ef21ff6a57265aa93f1d6d84f222
SHA256

fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8
SHA512

823998123b6a03a52dc907279ad237b1035c07df197a4a1dd3027605211b81492f45d0d9ad2468291ffb57aab31c154b627f09b965e2138e73d38a50f2c69c7a
SSDEEP

6144:WTXUblJm7Cu9/cHDWLk9bLNZRgWLkmKc0VxS4ZJIh8q8x9dBrtdchM+GO:2UzmZGDp9bLNLgpl5Vxm8vdTEG

Score

10^/10

kronos banker botnet persistence

Malware Config

Signatures

Kronos
banker botnet kronos

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\f5ea51da = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\{505142DC-3F86-4D53-9193-89C8A0D5E074}\\f5ea51da.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\f5ea51da = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\{505142DC-3F86-4D53-9193-89C8A0D5E074}\\f5ea51da.exe"	svchost.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-WER-Diag%4Operational.evtx	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 544 set thread context of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\appcompat\programs\RecentFileCache.bcf	Process not Found

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2036	1396	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe

Suspicious behavior: MapViewOfSection 25 IoCs

pid	Process
1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe
1396	svchost.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeDebugPrivilege	1396	svchost.exe
Token: SeShutdownPrivilege	1352	Process not Found
Token: SeAuditPrivilege	876	Process not Found

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
752	Process not Found

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 816	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	27
PID 544 wrote to memory of 816	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	27
PID 544 wrote to memory of 816	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	27
PID 544 wrote to memory of 816	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	27
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 544 wrote to memory of 1360	544	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	28
PID 1360 wrote to memory of 1396	1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	29
PID 1360 wrote to memory of 1396	1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	29
PID 1360 wrote to memory of 1396	1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	29
PID 1360 wrote to memory of 1396	1360	fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe	29
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 1396 wrote to memory of 2036	1396	svchost.exe	30
PID 1396 wrote to memory of 2036	1396	svchost.exe	30
PID 1396 wrote to memory of 2036	1396	svchost.exe	30
PID 1396 wrote to memory of 2036	1396	svchost.exe	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30
PID 376 wrote to memory of 2036	376	Process not Found	30

C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
"C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:544
- C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
  "C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe"
  2⤵
  PID:816
- C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe
  "C:\Users\Admin\AppData\Local\Temp\fa28a5a8adb0dc346377f393c7a0882c1c8d122c62d84d8ea39a784bc997b6e8.exe"
  2⤵
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\system32\svchost.exe"
    3⤵
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1396
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 424
      4⤵
      Program crash
      PID:2036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/108-94-0x0000000000200000-0x0000000000205000-memory.dmp

Filesize
20KB

Download
memory/260-79-0x0000000000110000-0x0000000000115000-memory.dmp

Filesize
20KB

Download
memory/292-93-0x0000000000150000-0x0000000000155000-memory.dmp

Filesize
20KB

Download
memory/332-80-0x0000000001EE0000-0x0000000001EE5000-memory.dmp

Filesize
20KB

Download
memory/368-81-0x00000000000E0000-0x00000000000E5000-memory.dmp

Filesize
20KB

Download
memory/376-82-0x0000000000290000-0x0000000000295000-memory.dmp

Filesize
20KB

Download
memory/408-83-0x0000000000050000-0x0000000000055000-memory.dmp

Filesize
20KB

Download
memory/460-85-0x0000000000080000-0x0000000000085000-memory.dmp

Filesize
20KB

Download
memory/476-84-0x00000000005A0000-0x00000000005A5000-memory.dmp

Filesize
20KB

Download
memory/484-86-0x0000000000090000-0x0000000000095000-memory.dmp

Filesize
20KB

Download
memory/544-69-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/544-55-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/544-54-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/588-88-0x0000000000140000-0x0000000000145000-memory.dmp

Filesize
20KB

Download
memory/668-87-0x00000000003C0000-0x00000000003C5000-memory.dmp

Filesize
20KB

Download
memory/744-99-0x0000000000090000-0x0000000000095000-memory.dmp

Filesize
20KB

Download
memory/752-89-0x0000000000980000-0x0000000000985000-memory.dmp

Filesize
20KB

Download
memory/800-90-0x0000000000330000-0x0000000000335000-memory.dmp

Filesize
20KB

Download
memory/844-91-0x0000000000180000-0x0000000000185000-memory.dmp

Filesize
20KB

Download
memory/876-92-0x00000000008B0000-0x00000000008B5000-memory.dmp

Filesize
20KB

Download
memory/1244-97-0x0000000001C20000-0x0000000001C25000-memory.dmp

Filesize
20KB

Download
memory/1328-98-0x0000000000120000-0x0000000000125000-memory.dmp

Filesize
20KB

Download
memory/1352-95-0x0000000002670000-0x0000000002675000-memory.dmp

Filesize
20KB

Download
memory/1360-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-73-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1360-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1396-76-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1396-75-0x0000000000350000-0x0000000000358000-memory.dmp

Filesize
32KB

Download
memory/1396-78-0x0000000000090000-0x0000000000095000-memory.dmp

Filesize
20KB

Download
memory/1472-100-0x00000000002C0000-0x00000000002C5000-memory.dmp

Filesize
20KB

Download
memory/1808-96-0x0000000000080000-0x0000000000085000-memory.dmp

Filesize
20KB

Download