dbfc1a8b306c24d3198a7890721bcde2ac6ee51333710d0496a636f5fdb16d74

Analysis

max time kernel
150s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 00:43

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General

Target

a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe
Size

13KB
MD5

a4bd51e79f8f19f9dbf521f0933612bb
SHA1

60e4ffb88f928cee0435e79112373388ff0e0682
SHA256

dbfc1a8b306c24d3198a7890721bcde2ac6ee51333710d0496a636f5fdb16d74
SHA512

a978c1efe9b0a6aaa00ae33b3fe01014e54c6afcb021cc5cea243a0d7f21e89363caba0724ee10dd8d797dd101e696f74cda50b03a6d57197eeab3fbfab1eff3
SSDEEP

384:PtGvGV1sd8zobWctExeNmxKsyK7ocJx2y:PtsGVM8YWc2xeNmUFK7ocj2

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
2060	cenvtak.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1448-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00070000000234f1-4.dat	upx
behavioral2/memory/1448-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/2060-8-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cenvta.dll	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cenvtak.exe	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\cenvtak.exe	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cenvtak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2060	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	84
PID 1448 wrote to memory of 2060	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	84
PID 1448 wrote to memory of 2060	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	84
PID 1448 wrote to memory of 4928	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	97
PID 1448 wrote to memory of 4928	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	97
PID 1448 wrote to memory of 4928	1448	a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe	97

C:\Users\Admin\AppData\Local\Temp\a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\cenvtak.exe
  C:\Windows\system32\cenvtak.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\a4bd51e79f8f19f9dbf521f0933612bb_JaffaCakes118.exe.bat

Filesize
210B

MD5
47a3645dc3278de66eac78822ee88201

SHA1
11d9b213124a1be261c23236e577a291161e0889

SHA256
60eab9f78f8160d8a91e16b90e159f80324dbb5b8926d741bf7bc0cacc2265e2

SHA512
4ad78295cceb634f872a2d17cc0a31072a189d6023df6d39514694e379206285fa1a8ae8327455abe39f3117f0afff649b3e5e69b2caf6e187f042263f747cea

Download Submit
C:\Windows\SysWOW64\cenvtak.exe

Filesize
13KB

MD5
a4bd51e79f8f19f9dbf521f0933612bb

SHA1
60e4ffb88f928cee0435e79112373388ff0e0682

SHA256
dbfc1a8b306c24d3198a7890721bcde2ac6ee51333710d0496a636f5fdb16d74

SHA512
a978c1efe9b0a6aaa00ae33b3fe01014e54c6afcb021cc5cea243a0d7f21e89363caba0724ee10dd8d797dd101e696f74cda50b03a6d57197eeab3fbfab1eff3

Download Submit
memory/1448-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1448-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2060-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download